| /* |
| * Mesa 3-D graphics library |
| * Version: 5.1 |
| * |
| * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /* Authors: |
| * David Bucciarelli |
| * Brian Paul |
| * Daryll Strauss |
| * Keith Whitwell |
| * Daniel Borca |
| * Hiroshi Morii |
| */ |
| |
| /* fxdd.c - 3Dfx VooDoo Mesa device driver functions */ |
| |
| |
| #ifdef HAVE_CONFIG_H |
| #include "conf.h" |
| #endif |
| |
| #if defined(FX) |
| |
| #include "image.h" |
| #include "mtypes.h" |
| #include "fxdrv.h" |
| #include "buffers.h" |
| #include "enums.h" |
| #include "extensions.h" |
| #include "macros.h" |
| #include "texstore.h" |
| #include "teximage.h" |
| #include "swrast/swrast.h" |
| #include "swrast/s_context.h" |
| #include "swrast_setup/swrast_setup.h" |
| #include "tnl/tnl.h" |
| #include "tnl/t_context.h" |
| #include "tnl/t_pipeline.h" |
| #include "vbo/vbo.h" |
| |
| |
| |
| /* lookup table for scaling 4 bit colors up to 8 bits */ |
| GLuint FX_rgb_scale_4[16] = { |
| 0, 17, 34, 51, 68, 85, 102, 119, |
| 136, 153, 170, 187, 204, 221, 238, 255 |
| }; |
| |
| /* lookup table for scaling 5 bit colors up to 8 bits */ |
| GLuint FX_rgb_scale_5[32] = { |
| 0, 8, 16, 25, 33, 41, 49, 58, |
| 66, 74, 82, 90, 99, 107, 115, 123, |
| 132, 140, 148, 156, 165, 173, 181, 189, |
| 197, 206, 214, 222, 230, 239, 247, 255 |
| }; |
| |
| /* lookup table for scaling 6 bit colors up to 8 bits */ |
| GLuint FX_rgb_scale_6[64] = { |
| 0, 4, 8, 12, 16, 20, 24, 28, |
| 32, 36, 40, 45, 49, 53, 57, 61, |
| 65, 69, 73, 77, 81, 85, 89, 93, |
| 97, 101, 105, 109, 113, 117, 121, 125, |
| 130, 134, 138, 142, 146, 150, 154, 158, |
| 162, 166, 170, 174, 178, 182, 186, 190, |
| 194, 198, 202, 206, 210, 215, 219, 223, |
| 227, 231, 235, 239, 243, 247, 251, 255 |
| }; |
| |
| |
| /* |
| * Disable color by masking out R, G, B, A |
| */ |
| static void fxDisableColor (fxMesaContext fxMesa) |
| { |
| if (fxMesa->colDepth == 32) { |
| /* 32bpp mode */ |
| fxMesa->Glide.grColorMaskExt(FXFALSE, FXFALSE, FXFALSE, FXFALSE); |
| } else { |
| /* 15/16 bpp mode */ |
| grColorMask(FXFALSE, FXFALSE); |
| } |
| } |
| |
| |
| /**********************************************************************/ |
| /***** Miscellaneous functions *****/ |
| /**********************************************************************/ |
| |
| /* Return buffer size information */ |
| static void |
| fxDDGetBufferSize(GLframebuffer *buffer, GLuint *width, GLuint *height) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| if (ctx && FX_CONTEXT(ctx)) { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| if (TDFX_DEBUG & VERBOSE_DRIVER) { |
| fprintf(stderr, "fxDDGetBufferSize(...)\n"); |
| } |
| |
| *width = fxMesa->width; |
| *height = fxMesa->height; |
| } |
| } |
| |
| |
| /** |
| * We only implement this function as a mechanism to check if the |
| * framebuffer size has changed (and update corresponding state). |
| */ |
| static void |
| fxDDViewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h) |
| { |
| GLuint newWidth, newHeight; |
| GLframebuffer *buffer = ctx->WinSysDrawBuffer; |
| fxDDGetBufferSize( buffer, &newWidth, &newHeight ); |
| if (buffer->Width != newWidth || buffer->Height != newHeight) { |
| _mesa_resize_framebuffer(ctx, buffer, newWidth, newHeight ); |
| } |
| } |
| |
| |
| /* Implements glClearColor() */ |
| static void |
| fxDDClearColor(GLcontext * ctx, const GLfloat color[4]) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| GLubyte col[4]; |
| |
| if (TDFX_DEBUG & VERBOSE_DRIVER) { |
| fprintf(stderr, "fxDDClearColor(%f, %f, %f, %f)\n", |
| color[0], color[1], color[2], color[3]); |
| } |
| |
| CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]); |
| CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]); |
| CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]); |
| CLAMPED_FLOAT_TO_UBYTE(col[3], color[3]); |
| |
| fxMesa->clearC = FXCOLOR4(col); |
| fxMesa->clearA = col[3]; |
| } |
| |
| |
| /* Clear the color and/or depth buffers */ |
| static void fxDDClear( GLcontext *ctx, GLbitfield mask ) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| GLbitfield softwareMask = mask & (BUFFER_BIT_ACCUM); |
| const GLuint stencil_size = fxMesa->haveHwStencil ? ctx->Visual.stencilBits : 0; |
| const FxU32 clearD = (FxU32) (ctx->DrawBuffer->_DepthMaxF * ctx->Depth.Clear); |
| const FxU8 clearS = (FxU8) (ctx->Stencil.Clear & 0xff); |
| |
| if ( TDFX_DEBUG & MESA_VERBOSE ) { |
| fprintf( stderr, "fxDDClear\n"); |
| } |
| |
| /* we can't clear accum buffers nor stereo */ |
| mask &= ~(BUFFER_BIT_ACCUM | BUFFER_BIT_FRONT_RIGHT | BUFFER_BIT_BACK_RIGHT); |
| |
| /* Need this check to respond to certain HW updates */ |
| if (fxMesa->new_state & (FX_NEW_SCISSOR | FX_NEW_COLOR_MASK)) { |
| fxSetupScissor(ctx); |
| fxSetupColorMask(ctx); |
| fxMesa->new_state &= ~(FX_NEW_SCISSOR | FX_NEW_COLOR_MASK); |
| } |
| |
| /* |
| * As per GL spec, color masking should be obeyed when clearing |
| */ |
| if (ctx->Visual.greenBits != 8) { |
| /* can only do color masking if running in 24/32bpp on Napalm */ |
| if (ctx->Color.ColorMask[RCOMP] != ctx->Color.ColorMask[GCOMP] || |
| ctx->Color.ColorMask[GCOMP] != ctx->Color.ColorMask[BCOMP]) { |
| softwareMask |= (mask & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)); |
| mask &= ~(BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT); |
| } |
| } |
| |
| if (fxMesa->haveHwStencil) { |
| /* |
| * If we want to clear stencil, it must be enabled |
| * in the HW, even if the stencil test is not enabled |
| * in the OGL state. |
| */ |
| BEGIN_BOARD_LOCK(); |
| if (mask & BUFFER_BIT_STENCIL) { |
| fxMesa->Glide.grStencilMaskExt(fxMesa->unitsState.stencilWriteMask); |
| /* set stencil ref value = desired clear value */ |
| fxMesa->Glide.grStencilFuncExt(GR_CMP_ALWAYS, clearS, 0xff); |
| fxMesa->Glide.grStencilOpExt(GR_STENCILOP_REPLACE, |
| GR_STENCILOP_REPLACE, GR_STENCILOP_REPLACE); |
| grEnable(GR_STENCIL_MODE_EXT); |
| } |
| else { |
| grDisable(GR_STENCIL_MODE_EXT); |
| } |
| END_BOARD_LOCK(); |
| } else if (mask & BUFFER_BIT_STENCIL) { |
| softwareMask |= (mask & (BUFFER_BIT_STENCIL)); |
| mask &= ~(BUFFER_BIT_STENCIL); |
| } |
| |
| /* |
| * This may be ugly, but it's needed in order to work around a number |
| * of Glide bugs. |
| */ |
| BEGIN_CLIP_LOOP(); |
| { |
| /* |
| * This could probably be done fancier but doing each possible case |
| * explicitly is less error prone. |
| */ |
| switch (mask & ~BUFFER_BIT_STENCIL) { |
| case BUFFER_BIT_BACK_LEFT | BUFFER_BIT_DEPTH: |
| /* back buffer & depth */ |
| grDepthMask(FXTRUE); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) { |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| } |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_DEPTH: |
| /* XXX it appears that the depth buffer isn't cleared when |
| * glRenderBuffer(GR_BUFFER_FRONTBUFFER) is set. |
| * This is a work-around/ |
| */ |
| /* clear depth */ |
| grDepthMask(FXTRUE); |
| fxDisableColor(fxMesa); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| fxSetupColorMask(ctx); |
| grDepthMask(FXFALSE); |
| /* clear front */ |
| grRenderBuffer(GR_BUFFER_FRONTBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_BACK_LEFT: |
| /* back buffer only */ |
| grDepthMask(FXFALSE); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_FRONT_LEFT: |
| /* front buffer only */ |
| grDepthMask(FXFALSE); |
| grRenderBuffer(GR_BUFFER_FRONTBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT: |
| /* front and back */ |
| grDepthMask(FXFALSE); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| grRenderBuffer(GR_BUFFER_FRONTBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT | BUFFER_BIT_DEPTH: |
| /* clear back and depth */ |
| grDepthMask(FXTRUE); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| /* clear front */ |
| grDepthMask(FXFALSE); |
| grRenderBuffer(GR_BUFFER_FRONTBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| break; |
| case BUFFER_BIT_DEPTH: |
| /* just the depth buffer */ |
| grDepthMask(FXTRUE); |
| fxDisableColor(fxMesa); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| if (stencil_size > 0) |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| else |
| grBufferClear(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD); |
| fxSetupColorMask(ctx); |
| break; |
| default: |
| /* clear no color buffers or depth buffer but might clear stencil */ |
| if ((stencil_size > 0) && (mask & BUFFER_BIT_STENCIL)) { |
| /* XXX need this RenderBuffer call to work around Glide bug */ |
| grDepthMask(FXFALSE); |
| grRenderBuffer(GR_BUFFER_BACKBUFFER); |
| fxDisableColor(fxMesa); |
| fxMesa->Glide.grBufferClearExt(fxMesa->clearC, |
| fxMesa->clearA, |
| clearD, clearS); |
| fxSetupColorMask(ctx); |
| } |
| } |
| } |
| END_CLIP_LOOP(); |
| |
| if (fxMesa->haveHwStencil) { |
| /* We changed the stencil state above. Restore it! */ |
| fxSetupStencil(ctx); |
| } |
| fxSetupDepthTest(ctx); |
| grRenderBuffer(fxMesa->currentFB); |
| |
| if (softwareMask) |
| _swrast_Clear( ctx, softwareMask ); |
| } |
| |
| |
| /* Set the buffer used for drawing */ |
| /* XXX support for separate read/draw buffers hasn't been tested */ |
| /* XXX GL_NONE disables color, but fails to correctly maintain state */ |
| static void |
| fxDDSetDrawBuffer(GLcontext * ctx, GLenum mode) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| if (TDFX_DEBUG & VERBOSE_DRIVER) { |
| fprintf(stderr, "fxDDSetDrawBuffer(%x)\n", (int)mode); |
| } |
| |
| if (mode == GL_FRONT_LEFT) { |
| fxMesa->currentFB = GR_BUFFER_FRONTBUFFER; |
| grRenderBuffer(fxMesa->currentFB); |
| } |
| else if (mode == GL_BACK_LEFT) { |
| fxMesa->currentFB = GR_BUFFER_BACKBUFFER; |
| grRenderBuffer(fxMesa->currentFB); |
| } |
| else if (mode == GL_NONE) { |
| fxDisableColor(fxMesa); |
| } |
| else { |
| /* we'll need a software fallback */ |
| /* XXX not implemented */ |
| } |
| |
| /* update s/w fallback state */ |
| _swrast_DrawBuffer(ctx, mode); |
| } |
| |
| |
| static void |
| fxDDDrawBitmap2 (GLcontext *ctx, GLint px, GLint py, |
| GLsizei width, GLsizei height, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLubyte *bitmap) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| GrLfbWriteMode_t mode; |
| FxU16 color; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| /* check if there's any raster operations enabled which we can't handle */ |
| if (swrast->_RasterMask & (ALPHATEST_BIT | |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| MASKING_BIT | |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) { |
| _swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (px < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - px); |
| width -= (ctx->Scissor.X - px); |
| px = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (px + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (px + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (py < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - py); |
| height -= (ctx->Scissor.Y - py); |
| py = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (py + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (py + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| /* compute pixel value */ |
| { |
| GLint r = (GLint) (ctx->Current.RasterColor[RCOMP] * 255.0f); |
| GLint g = (GLint) (ctx->Current.RasterColor[GCOMP] * 255.0f); |
| GLint b = (GLint) (ctx->Current.RasterColor[BCOMP] * 255.0f); |
| GLint a = (GLint) (ctx->Current.RasterColor[ACOMP] * 255.0f); |
| if (fxMesa->colDepth == 15) { |
| color = TDFXPACKCOLOR1555(b, g, r, a); |
| mode = GR_LFBWRITEMODE_1555; |
| } else { |
| color = fxMesa->bgrOrder ? TDFXPACKCOLOR565(r, g, b) : TDFXPACKCOLOR565(b, g, r); |
| mode = GR_LFBWRITEMODE_565; |
| } |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| mode, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_Bitmap(ctx, px, py, width, height, finalUnpack, bitmap); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| /* The dest stride depends on the hardware and whether we're drawing |
| * to the front or back buffer. This compile-time test seems to do |
| * the job for now. |
| */ |
| const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| |
| GLint row; |
| /* compute dest address of bottom-left pixel in bitmap */ |
| GLushort *dst = (GLushort *) info.lfbPtr |
| + (winY + py) * dstStride + (winX + px); |
| |
| for (row = 0; row < height; row++) { |
| const GLubyte *src = |
| (const GLubyte *) _mesa_image_address2d(finalUnpack, |
| bitmap, width, height, |
| GL_COLOR_INDEX, GL_BITMAP, |
| row, 0); |
| if (finalUnpack->LsbFirst) { |
| /* least significan bit first */ |
| GLubyte mask = 1U << (finalUnpack->SkipPixels & 0x7); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| if (*src & mask) { |
| dst[col] = color; |
| } |
| if (mask == 128U) { |
| src++; |
| mask = 1U; |
| } |
| else { |
| mask = mask << 1; |
| } |
| } |
| if (mask != 1) |
| src++; |
| } |
| else { |
| /* most significan bit first */ |
| GLubyte mask = 128U >> (finalUnpack->SkipPixels & 0x7); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| if (*src & mask) { |
| dst[col] = color; |
| } |
| if (mask == 1U) { |
| src++; |
| mask = 128U; |
| } |
| else { |
| mask = mask >> 1; |
| } |
| } |
| if (mask != 128) |
| src++; |
| } |
| dst += dstStride; |
| } |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| static void |
| fxDDDrawBitmap4 (GLcontext *ctx, GLint px, GLint py, |
| GLsizei width, GLsizei height, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLubyte *bitmap) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| FxU32 color; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| /* check if there's any raster operations enabled which we can't handle */ |
| if ((swrast->_RasterMask & (/*ALPHATEST_BIT |*/ |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| /*MASKING_BIT |*/ /* masking ok, we're in 32bpp */ |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) |
| ) { |
| _swrast_Bitmap(ctx, px, py, width, height, unpack, bitmap); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (px < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - px); |
| width -= (ctx->Scissor.X - px); |
| px = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (px + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (px + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (py < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - py); |
| height -= (ctx->Scissor.Y - py); |
| py = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (py + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (py + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| /* compute pixel value */ |
| { |
| GLint r = (GLint) (ctx->Current.RasterColor[RCOMP] * 255.0f); |
| GLint g = (GLint) (ctx->Current.RasterColor[GCOMP] * 255.0f); |
| GLint b = (GLint) (ctx->Current.RasterColor[BCOMP] * 255.0f); |
| GLint a = (GLint) (ctx->Current.RasterColor[ACOMP] * 255.0f); |
| color = TDFXPACKCOLOR8888(b, g, r, a); |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_8888, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_Bitmap(ctx, px, py, width, height, finalUnpack, bitmap); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| /* The dest stride depends on the hardware and whether we're drawing |
| * to the front or back buffer. This compile-time test seems to do |
| * the job for now. |
| */ |
| const GLint dstStride = info.strideInBytes / 4; /* stride in GLuints */ |
| |
| GLint row; |
| /* compute dest address of bottom-left pixel in bitmap */ |
| GLuint *dst = (GLuint *) info.lfbPtr |
| + (winY + py) * dstStride + (winX + px); |
| |
| for (row = 0; row < height; row++) { |
| const GLubyte *src = |
| (const GLubyte *) _mesa_image_address2d(finalUnpack, |
| bitmap, width, height, |
| GL_COLOR_INDEX, GL_BITMAP, |
| row, 0); |
| if (finalUnpack->LsbFirst) { |
| /* least significan bit first */ |
| GLubyte mask = 1U << (finalUnpack->SkipPixels & 0x7); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| if (*src & mask) { |
| dst[col] = color; |
| } |
| if (mask == 128U) { |
| src++; |
| mask = 1U; |
| } |
| else { |
| mask = mask << 1; |
| } |
| } |
| if (mask != 1) |
| src++; |
| } |
| else { |
| /* most significan bit first */ |
| GLubyte mask = 128U >> (finalUnpack->SkipPixels & 0x7); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| if (*src & mask) { |
| dst[col] = color; |
| } |
| if (mask == 1U) { |
| src++; |
| mask = 128U; |
| } |
| else { |
| mask = mask >> 1; |
| } |
| } |
| if (mask != 128) |
| src++; |
| } |
| dst += dstStride; |
| } |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| |
| static void |
| fxDDReadPixels565 (GLcontext * ctx, |
| GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *packing, |
| GLvoid *dstImage) |
| { |
| if (ctx->_ImageTransferState/* & (IMAGE_SCALE_BIAS_BIT|IMAGE_MAP_COLOR_BIT)*/) { |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| else { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| |
| BEGIN_BOARD_LOCK(); |
| info.size = sizeof(info); |
| if (grLfbLock(GR_LFB_READ_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_ANY, |
| GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) { |
| const GLint winX = 0; |
| const GLint winY = fxMesa->height - 1; |
| const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| const GLushort *src = (const GLushort *) info.lfbPtr |
| + (winY - y) * srcStride + (winX + x); |
| GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dstImage, |
| width, height, format, |
| type, 0, 0); |
| GLint dstStride = |
| _mesa_image_row_stride(packing, width, format, type); |
| |
| if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| /* convert 5R6G5B into 8R8G8B */ |
| GLint row, col; |
| const GLint halfWidth = width >> 1; |
| const GLint extraPixel = (width & 1); |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < halfWidth; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = FX_rgb_scale_5[(pixel >> 11) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 5) & 0x3f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 27) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 21) & 0x3f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f]; |
| } |
| if (extraPixel) { |
| GLushort pixel = src[width - 1]; |
| *d++ = FX_rgb_scale_5[(pixel >> 11) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 5) & 0x3f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| /* convert 5R6G5B into 8R8G8B8A */ |
| GLint row, col; |
| const GLint halfWidth = width >> 1; |
| const GLint extraPixel = (width & 1); |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < halfWidth; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = FX_rgb_scale_5[(pixel >> 11) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 5) & 0x3f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = 255; |
| *d++ = FX_rgb_scale_5[(pixel >> 27) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 21) & 0x3f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f]; |
| *d++ = 255; |
| } |
| if (extraPixel) { |
| const GLushort pixel = src[width - 1]; |
| *d++ = FX_rgb_scale_5[(pixel >> 11) & 0x1f]; |
| *d++ = FX_rgb_scale_6[(pixel >> 5) & 0x3f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = 255; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) { |
| /* directly memcpy 5R6G5B pixels into client's buffer */ |
| const GLint widthInBytes = width * 2; |
| GLint row; |
| for (row = 0; row < height; row++) { |
| MEMCPY(dst, src, widthInBytes); |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| END_BOARD_LOCK(); |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| } |
| END_BOARD_LOCK(); |
| } |
| } |
| |
| static void |
| fxDDReadPixels555 (GLcontext * ctx, |
| GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *packing, |
| GLvoid *dstImage) |
| { |
| if (ctx->_ImageTransferState/* & (IMAGE_SCALE_BIAS_BIT|IMAGE_MAP_COLOR_BIT)*/) { |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| else { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| |
| BEGIN_BOARD_LOCK(); |
| info.size = sizeof(info); |
| if (grLfbLock(GR_LFB_READ_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_ANY, |
| GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) { |
| const GLint winX = 0; |
| const GLint winY = fxMesa->height - 1; |
| const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| const GLushort *src = (const GLushort *) info.lfbPtr |
| + (winY - y) * srcStride + (winX + x); |
| GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dstImage, |
| width, height, format, |
| type, 0, 0); |
| GLint dstStride = |
| _mesa_image_row_stride(packing, width, format, type); |
| |
| if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| /* convert 5R5G5B into 8R8G8B */ |
| GLint row, col; |
| const GLint halfWidth = width >> 1; |
| const GLint extraPixel = (width & 1); |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < halfWidth; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 26) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 21) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f]; |
| } |
| if (extraPixel) { |
| GLushort pixel = src[width - 1]; |
| *d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| /* convert 5R6G5B into 8R8G8B8A */ |
| GLint row, col; |
| const GLint halfWidth = width >> 1; |
| const GLint extraPixel = (width & 1); |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < halfWidth; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = (pixel & 0x8000) ? 255 : 0; |
| *d++ = FX_rgb_scale_5[(pixel >> 26) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 21) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 16) & 0x1f]; |
| *d++ = (pixel & 0x80000000) ? 255 : 0; |
| } |
| if (extraPixel) { |
| const GLushort pixel = src[width - 1]; |
| *d++ = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; |
| *d++ = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; |
| *d++ = FX_rgb_scale_5[ pixel & 0x1f]; |
| *d++ = (pixel & 0x8000) ? 255 : 0; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { |
| /* directly memcpy 5R5G5B pixels into client's buffer */ |
| const GLint widthInBytes = width * 2; |
| GLint row; |
| for (row = 0; row < height; row++) { |
| MEMCPY(dst, src, widthInBytes); |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| END_BOARD_LOCK(); |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| } |
| END_BOARD_LOCK(); |
| } |
| } |
| |
| static void |
| fxDDReadPixels8888 (GLcontext * ctx, |
| GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *packing, |
| GLvoid *dstImage) |
| { |
| if (ctx->_ImageTransferState/* & (IMAGE_SCALE_BIAS_BIT|IMAGE_MAP_COLOR_BIT)*/) { |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| else { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| |
| BEGIN_BOARD_LOCK(); |
| info.size = sizeof(info); |
| if (grLfbLock(GR_LFB_READ_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_ANY, |
| GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) { |
| const GLint winX = 0; |
| const GLint winY = fxMesa->height - 1; |
| const GLint srcStride = info.strideInBytes / 4; /* stride in GLuints */ |
| const GLuint *src = (const GLuint *) info.lfbPtr |
| + (winY - y) * srcStride + (winX + x); |
| GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing, dstImage, |
| width, height, format, |
| type, 0, 0); |
| GLint dstStride = |
| _mesa_image_row_stride(packing, width, format, type); |
| |
| if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| /* convert 8A8R8G8B into 8R8G8B */ |
| GLint row, col; |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < width; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = pixel >> 16; |
| *d++ = pixel >> 8; |
| *d++ = pixel; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| /* 8A8R8G8B pixels into client's buffer */ |
| GLint row, col; |
| for (row = 0; row < height; row++) { |
| GLubyte *d = dst; |
| for (col = 0; col < width; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = pixel >> 16; |
| *d++ = pixel >> 8; |
| *d++ = pixel; |
| *d++ = pixel >> 24; |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5) { |
| /* convert 8A8R8G8B into 5R6G5B */ |
| GLint row, col; |
| for (row = 0; row < height; row++) { |
| GLushort *d = (GLushort *)dst; |
| for (col = 0; col < width; col++) { |
| const GLuint pixel = ((const GLuint *) src)[col]; |
| *d++ = (((pixel >> 16) & 0xf8) << 8) | |
| (((pixel >> 8) & 0xfc) << 3) | |
| ((pixel & 0xf8) >> 3); |
| } |
| dst += dstStride; |
| src -= srcStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| END_BOARD_LOCK(); |
| _swrast_ReadPixels(ctx, x, y, width, height, format, type, |
| packing, dstImage); |
| return; |
| } |
| |
| grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); |
| } |
| END_BOARD_LOCK(); |
| } |
| } |
| |
| |
| static void |
| fxDDDrawPixels555 (GLcontext * ctx, GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| if (ctx->Pixel.ZoomX != 1.0F || |
| ctx->Pixel.ZoomY != 1.0F || |
| (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT| |
| IMAGE_MAP_COLOR_BIT)) || |
| (swrast->_RasterMask & (ALPHATEST_BIT | |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| MASKING_BIT | |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) || |
| fxMesa->fallback) |
| { |
| _swrast_DrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels ); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (x < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - x); |
| width -= (ctx->Scissor.X - x); |
| x = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (x + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (x + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (y < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - y); |
| height -= (ctx->Scissor.Y - y); |
| y = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (y + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (y + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_1555, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| |
| const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| GLushort *dst = (GLushort *) info.lfbPtr + (winY + y) * dstStride + (winX + x); |
| |
| if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR1555(src[2], src[1], src[0], src[3]); |
| src += 4; |
| } |
| dst += dstStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR1555(src[2], src[1], src[0], 255); |
| src += 3; |
| } |
| dst += dstStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| |
| static void |
| fxDDDrawPixels565 (GLcontext * ctx, GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| if (ctx->Pixel.ZoomX != 1.0F || |
| ctx->Pixel.ZoomY != 1.0F || |
| (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT| |
| IMAGE_MAP_COLOR_BIT)) || |
| (swrast->_RasterMask & (ALPHATEST_BIT | |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| MASKING_BIT | |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) || |
| fxMesa->fallback) |
| { |
| _swrast_DrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels ); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (x < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - x); |
| width -= (ctx->Scissor.X - x); |
| x = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (x + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (x + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (y < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - y); |
| height -= (ctx->Scissor.Y - y); |
| y = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (y + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (y + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_565, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| |
| const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| GLushort *dst = (GLushort *) info.lfbPtr + (winY + y) * dstStride + (winX + x); |
| |
| if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR565(src[2], src[1], src[0]); |
| src += 4; |
| } |
| dst += dstStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR565(src[2], src[1], src[0]); |
| src += 3; |
| } |
| dst += dstStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| |
| static void |
| fxDDDrawPixels565_rev (GLcontext * ctx, GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| if (ctx->Pixel.ZoomX != 1.0F || |
| ctx->Pixel.ZoomY != 1.0F || |
| (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT| |
| IMAGE_MAP_COLOR_BIT)) || |
| (swrast->_RasterMask & (ALPHATEST_BIT | |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| MASKING_BIT | |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) || |
| fxMesa->fallback) |
| { |
| _swrast_DrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels ); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (x < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - x); |
| width -= (ctx->Scissor.X - x); |
| x = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (x + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (x + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (y < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - y); |
| height -= (ctx->Scissor.Y - y); |
| y = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (y + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (y + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_565, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| |
| const GLint dstStride = info.strideInBytes / 2; /* stride in GLushorts */ |
| GLushort *dst = (GLushort *) info.lfbPtr + (winY + y) * dstStride + (winX + x); |
| |
| if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR565(src[0], src[1], src[2]); |
| src += 4; |
| } |
| dst += dstStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR565(src[0], src[1], src[2]); |
| src += 3; |
| } |
| dst += dstStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| |
| static void |
| fxDDDrawPixels8888 (GLcontext * ctx, GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| SWcontext *swrast = SWRAST_CONTEXT(ctx); |
| GrLfbInfo_t info; |
| const struct gl_pixelstore_attrib *finalUnpack; |
| struct gl_pixelstore_attrib scissoredUnpack; |
| |
| if (ctx->Pixel.ZoomX != 1.0F || |
| ctx->Pixel.ZoomY != 1.0F || |
| (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT| |
| IMAGE_MAP_COLOR_BIT)) || |
| (swrast->_RasterMask & (/*ALPHATEST_BIT |*/ |
| /*BLEND_BIT |*/ /* blending ok, through pixpipe */ |
| DEPTH_BIT | /* could be done with RGB:DEPTH */ |
| FOG_BIT | /* could be done with RGB:DEPTH */ |
| LOGIC_OP_BIT | |
| /*CLIP_BIT |*/ /* clipping ok, below */ |
| STENCIL_BIT | |
| /*MASKING_BIT |*/ /* masking ok, we're in 32bpp */ |
| MULTI_DRAW_BIT | |
| OCCLUSION_BIT | /* nope! at least not yet */ |
| TEXTURE_BIT | |
| FRAGPROG_BIT)) || |
| fxMesa->fallback) |
| { |
| _swrast_DrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels ); |
| return; |
| } |
| |
| /* make sure the pixelpipe is configured correctly */ |
| fxSetupFXUnits(ctx); |
| |
| /* FIXME! _RasterMask & CLIP_BIT gets set if we're out of Viewport, also! */ |
| if (ctx->Scissor.Enabled) { |
| /* This is a bit tricky, but by carefully adjusting the px, py, |
| * width, height, skipPixels and skipRows values we can do |
| * scissoring without special code in the rendering loop. |
| */ |
| |
| /* we'll construct a new pixelstore struct */ |
| finalUnpack = &scissoredUnpack; |
| scissoredUnpack = *unpack; |
| if (scissoredUnpack.RowLength == 0) |
| scissoredUnpack.RowLength = width; |
| |
| /* clip left */ |
| if (x < ctx->Scissor.X) { |
| scissoredUnpack.SkipPixels += (ctx->Scissor.X - x); |
| width -= (ctx->Scissor.X - x); |
| x = ctx->Scissor.X; |
| } |
| /* clip right */ |
| if (x + width >= ctx->Scissor.X + ctx->Scissor.Width) { |
| width -= (x + width - (ctx->Scissor.X + ctx->Scissor.Width)); |
| } |
| /* clip bottom */ |
| if (y < ctx->Scissor.Y) { |
| scissoredUnpack.SkipRows += (ctx->Scissor.Y - y); |
| height -= (ctx->Scissor.Y - y); |
| y = ctx->Scissor.Y; |
| } |
| /* clip top */ |
| if (y + height >= ctx->Scissor.Y + ctx->Scissor.Height) { |
| height -= (y + height - (ctx->Scissor.Y + ctx->Scissor.Height)); |
| } |
| |
| if (width <= 0 || height <= 0) |
| return; |
| } |
| else { |
| finalUnpack = unpack; |
| } |
| |
| info.size = sizeof(info); |
| if (!grLfbLock(GR_LFB_WRITE_ONLY, |
| fxMesa->currentFB, |
| GR_LFBWRITEMODE_8888, |
| GR_ORIGIN_LOWER_LEFT, FXTRUE, &info)) { |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| { |
| const GLint winX = 0; |
| const GLint winY = 0; |
| |
| const GLint dstStride = info.strideInBytes / 4; /* stride in GLuints */ |
| GLuint *dst = (GLuint *) info.lfbPtr + (winY + y) * dstStride + (winX + x); |
| |
| if (format == GL_RGBA && type == GL_UNSIGNED_BYTE) { |
| /* directly memcpy 8A8R8G8B pixels to screen */ |
| const GLint widthInBytes = width * 4; |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| MEMCPY(dst, src, widthInBytes); |
| dst += dstStride; |
| } |
| } |
| else if (format == GL_RGB && type == GL_UNSIGNED_BYTE) { |
| GLint row; |
| for (row = 0; row < height; row++) { |
| GLubyte *src = (GLubyte *) _mesa_image_address2d(finalUnpack, |
| pixels, width, height, format, type, row, 0); |
| GLint col; |
| for (col = 0; col < width; col++) { |
| dst[col] = TDFXPACKCOLOR8888(src[2], src[1], src[0], 255); |
| src += 3; |
| } |
| dst += dstStride; |
| } |
| } |
| else { |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, finalUnpack, pixels); |
| return; |
| } |
| |
| } |
| |
| grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->currentFB); |
| } |
| |
| |
| static void |
| fxDDFinish(GLcontext * ctx) |
| { |
| grFlush(); |
| } |
| |
| |
| |
| |
| |
| /* KW: Put the word Mesa in the render string because quakeworld |
| * checks for this rather than doing a glGet(GL_MAX_TEXTURE_SIZE). |
| * Why? |
| */ |
| static const GLubyte * |
| fxDDGetString(GLcontext * ctx, GLenum name) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| switch (name) { |
| case GL_RENDERER: |
| return (GLubyte *)fxMesa->rendererString; |
| #if __WIN32__ /* hack to advertise vanilla extension names */ |
| case GL_EXTENSIONS: |
| if (ctx->Extensions.String == NULL) { |
| GLubyte *ext = _mesa_make_extension_string(ctx); |
| if (ext != NULL) { |
| ctx->Extensions.String = _mesa_malloc(strlen((char *)ext) + 256); |
| if (ctx->Extensions.String != NULL) { |
| strcpy((char *)ctx->Extensions.String, (char *)ext); |
| /* put any additional extension names here */ |
| #if 0 |
| strcat((char *)ctx->Extensions.String, " 3DFX_set_global_palette"); |
| #endif |
| #if __WIN32__ |
| strcat((char *)ctx->Extensions.String, " WGL_3DFX_gamma_control"); |
| strcat((char *)ctx->Extensions.String, " WGL_EXT_swap_control"); |
| strcat((char *)ctx->Extensions.String, " WGL_EXT_extensions_string WGL_ARB_extensions_string"); |
| #endif |
| /* put any additional extension names here */ |
| _mesa_free(ext); |
| } else { |
| ctx->Extensions.String = ext; |
| } |
| } |
| } |
| return ctx->Extensions.String; |
| #endif |
| default: |
| return NULL; |
| } |
| } |
| |
| static const struct tnl_pipeline_stage *fx_pipeline[] = { |
| &_tnl_vertex_transform_stage, /* XXX todo - Add the fastpath here */ |
| &_tnl_normal_transform_stage, |
| &_tnl_lighting_stage, |
| &_tnl_fog_coordinate_stage, |
| &_tnl_texgen_stage, |
| &_tnl_texture_transform_stage, |
| &_tnl_point_attenuation_stage, |
| #if defined(FEATURE_NV_vertex_program) || defined(FEATURE_ARB_vertex_program) |
| &_tnl_vertex_program_stage, |
| #endif |
| &_tnl_render_stage, |
| 0, |
| }; |
| |
| |
| |
| |
| int |
| fxDDInitFxMesaContext(fxMesaContext fxMesa) |
| { |
| GLcontext *ctx = fxMesa->glCtx; |
| |
| FX_setupGrVertexLayout(); |
| |
| fxMesa->color = 0xffffffff; |
| fxMesa->clearC = 0; |
| fxMesa->clearA = 0; |
| |
| fxMesa->stats.swapBuffer = 0; |
| fxMesa->stats.reqTexUpload = 0; |
| fxMesa->stats.texUpload = 0; |
| fxMesa->stats.memTexUpload = 0; |
| |
| fxMesa->tmuSrc = FX_TMU_NONE; |
| fxMesa->lastUnitsMode = FX_UM_NONE; |
| fxTMInit(fxMesa); |
| |
| /* FX units setup */ |
| |
| fxMesa->unitsState.alphaTestEnabled = GL_FALSE; |
| fxMesa->unitsState.alphaTestFunc = GL_ALWAYS; |
| fxMesa->unitsState.alphaTestRefValue = 0.0; |
| |
| fxMesa->unitsState.blendEnabled = GL_FALSE; |
| fxMesa->unitsState.blendSrcFuncRGB = GR_BLEND_ONE; |
| fxMesa->unitsState.blendDstFuncRGB = GR_BLEND_ZERO; |
| fxMesa->unitsState.blendSrcFuncAlpha = GR_BLEND_ONE; |
| fxMesa->unitsState.blendDstFuncAlpha = GR_BLEND_ZERO; |
| fxMesa->unitsState.blendEqRGB = GR_BLEND_OP_ADD; |
| fxMesa->unitsState.blendEqAlpha = GR_BLEND_OP_ADD; |
| |
| fxMesa->unitsState.depthTestEnabled = GL_FALSE; |
| fxMesa->unitsState.depthMask = GL_TRUE; |
| fxMesa->unitsState.depthTestFunc = GL_LESS; |
| fxMesa->unitsState.depthBias = 0; |
| |
| fxMesa->unitsState.stencilWriteMask = 0xff; |
| |
| if (fxMesa->colDepth == 32) { |
| /* 32bpp */ |
| fxMesa->Glide.grColorMaskExt(FXTRUE, FXTRUE, FXTRUE, fxMesa->haveHwAlpha); |
| } else { |
| /* 15/16 bpp mode */ |
| grColorMask(FXTRUE, fxMesa->haveHwAlpha); |
| } |
| |
| fxMesa->currentFB = fxMesa->haveDoubleBuffer ? GR_BUFFER_BACKBUFFER : GR_BUFFER_FRONTBUFFER; |
| grRenderBuffer(fxMesa->currentFB); |
| |
| fxMesa->state = MALLOC(FX_grGetInteger(GR_GLIDE_STATE_SIZE)); |
| fxMesa->fogTable = (GrFog_t *) MALLOC(FX_grGetInteger(GR_FOG_TABLE_ENTRIES) * |
| sizeof(GrFog_t)); |
| |
| if (!fxMesa->state || !fxMesa->fogTable) { |
| if (fxMesa->state) |
| FREE(fxMesa->state); |
| if (fxMesa->fogTable) |
| FREE(fxMesa->fogTable); |
| return 0; |
| } |
| |
| if (fxMesa->haveZBuffer) { |
| grDepthBufferMode(GR_DEPTHBUFFER_ZBUFFER); |
| } |
| |
| if (!fxMesa->bgrOrder) { |
| grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); |
| } |
| |
| if (fxMesa->Glide.grSetNumPendingBuffers != NULL) { |
| fxMesa->Glide.grSetNumPendingBuffers(fxMesa->maxPendingSwapBuffers); |
| } |
| |
| fxMesa->textureAlign = FX_grGetInteger(GR_TEXTURE_ALIGN); |
| /* [koolsmoky] */ |
| { |
| char *env; |
| int textureLevels = 0; |
| int textureSize = FX_grGetInteger(GR_MAX_TEXTURE_SIZE); |
| do { |
| textureLevels++; |
| } while ((textureSize >>= 0x1) & 0x7ff); |
| ctx->Const.MaxTextureLevels = textureLevels; |
| ctx->Const.MaxTextureLodBias = /*textureLevels - 1*/8; /* Glide bug */ |
| #if FX_RESCALE_BIG_TEXURES_HACK |
| fxMesa->textureMaxLod = textureLevels - 1; |
| if ((env = getenv("MESA_FX_MAXLOD")) != NULL) { |
| int maxLevels = atoi(env) + 1; |
| if ((maxLevels <= MAX_TEXTURE_LEVELS) && (maxLevels > textureLevels)) { |
| ctx->Const.MaxTextureLevels = maxLevels; |
| } |
| } |
| #endif |
| } |
| ctx->Const.MaxTextureCoordUnits = |
| ctx->Const.MaxTextureImageUnits = fxMesa->haveTwoTMUs ? 2 : 1; |
| ctx->Const.MaxTextureUnits = MAX2(ctx->Const.MaxTextureImageUnits, ctx->Const.MaxTextureCoordUnits); |
| |
| fxMesa->new_state = _NEW_ALL; |
| if (!fxMesa->haveHwStencil) { |
| /* don't touch stencil if there is none */ |
| fxMesa->new_state &= ~FX_NEW_STENCIL; |
| } |
| |
| /* Initialize the software rasterizer and helper modules. |
| */ |
| _swrast_CreateContext(ctx); |
| _vbo_CreateContext(ctx); |
| _tnl_CreateContext(ctx); |
| _swsetup_CreateContext(ctx); |
| |
| /* Install customized pipeline */ |
| _tnl_destroy_pipeline(ctx); |
| _tnl_install_pipeline(ctx, fx_pipeline); |
| |
| fxAllocVB(ctx); |
| |
| fxSetupDDPointers(ctx); |
| fxDDInitTriFuncs(ctx); |
| |
| /* Tell the software rasterizer to use pixel fog always. |
| */ |
| _swrast_allow_vertex_fog(ctx, GL_FALSE); |
| _swrast_allow_pixel_fog(ctx, GL_TRUE); |
| _tnl_allow_vertex_fog( ctx, GL_FALSE ); |
| _tnl_allow_pixel_fog( ctx, GL_TRUE ); |
| |
| /* Tell tnl not to calculate or use vertex fog factors. (Needed to |
| * tell render stage not to clip fog coords). |
| */ |
| /* _tnl_calculate_vertex_fog( ctx, GL_FALSE ); */ |
| |
| fxDDInitExtensions(ctx); |
| |
| #if 0 |
| /* do we want dither? It just looks bad... */ |
| grEnable(GR_ALLOW_MIPMAP_DITHER); |
| #endif |
| grGlideGetState((GrState *) fxMesa->state); |
| |
| return 1; |
| } |
| |
| /* Undo the above. |
| */ |
| void |
| fxDDDestroyFxMesaContext(fxMesaContext fxMesa) |
| { |
| _swsetup_DestroyContext(fxMesa->glCtx); |
| _tnl_DestroyContext(fxMesa->glCtx); |
| _vbo_DestroyContext(fxMesa->glCtx); |
| _swrast_DestroyContext(fxMesa->glCtx); |
| |
| if (fxMesa->state) |
| FREE(fxMesa->state); |
| if (fxMesa->fogTable) |
| FREE(fxMesa->fogTable); |
| fxFreeVB(fxMesa->glCtx); |
| } |
| |
| |
| |
| |
| void |
| fxDDInitExtensions(GLcontext * ctx) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| #if 1 /* multipass ColorSum stage */ |
| _mesa_enable_extension(ctx, "GL_EXT_secondary_color"); |
| #endif |
| |
| _mesa_enable_extension(ctx, "GL_ARB_point_sprite"); |
| _mesa_enable_extension(ctx, "GL_EXT_point_parameters"); |
| _mesa_enable_extension(ctx, "GL_EXT_paletted_texture"); |
| _mesa_enable_extension(ctx, "GL_EXT_texture_lod_bias"); |
| _mesa_enable_extension(ctx, "GL_EXT_shared_texture_palette"); |
| _mesa_enable_extension(ctx, "GL_EXT_blend_func_separate"); |
| _mesa_enable_extension(ctx, "GL_EXT_texture_env_add"); |
| _mesa_enable_extension(ctx, "GL_EXT_stencil_wrap"); |
| _mesa_enable_extension(ctx, "GL_EXT_stencil_two_side"); |
| |
| if (fxMesa->haveTwoTMUs) { |
| _mesa_enable_extension(ctx, "GL_ARB_multitexture"); |
| } |
| |
| if (fxMesa->type >= GR_SSTTYPE_Voodoo4) { |
| _mesa_enable_extension(ctx, "GL_ARB_texture_compression"); |
| _mesa_enable_extension(ctx, "GL_3DFX_texture_compression_FXT1"); |
| _mesa_enable_extension(ctx, "GL_EXT_texture_compression_s3tc"); |
| _mesa_enable_extension(ctx, "GL_S3_s3tc"); |
| _mesa_enable_extension(ctx, "GL_NV_blend_square"); |
| } else { |
| /* [dBorca] |
| * We should enable generic texture compression functions, |
| * but some poorly written apps automatically assume S3TC. |
| * Binding NCC to GL_COMPRESSED_RGB[A] is an unnecessary hassle, |
| * since it's slow and ugly (better with palette textures, then). |
| * Moreover, NCC is not an OpenGL standard, so we can't use |
| * precompressed textures. Last, but not least, NCC runs amok |
| * when multitexturing on a Voodoo3 and up (see POINTCAST vs UMA). |
| * Note: this is also a problem with palette textures, but |
| * faking multitex by multipass is evil... |
| * Implementing NCC requires three stages: |
| * fxDDChooseTextureFormat: |
| * bind GL_COMPRESSED_RGB[A] to _mesa_texformat_argb8888, |
| * so we can quantize properly, at a later time |
| * fxDDTexImage: |
| * if GL_COMPRESSED_RGB |
| * use _mesa_texformat_l8 to get 1bpt and set GR_TEXFMT_YIQ_422 |
| * if GL_COMPRESSED_RGBA |
| * use _mesa_texformat_al88 to get 2bpt and set GR_TEXFMT_AYIQ_8422 |
| * txMipQuantize(...); |
| * if (level == 0) { |
| * txPalToNcc((GuNccTable *)(&(ti->palette)), pxMip.pal); |
| * } |
| * fxSetupSingleTMU_NoLock/fxSetupDoubleTMU_NoLock: |
| * grTexDownloadTable(GR_TEXTABLE_NCC0, &(ti->palette)); |
| */ |
| /*_mesa_enable_extension(ctx, "GL_ARB_texture_compression");*/ |
| _mesa_enable_extension(ctx, "GL_SGIS_generate_mipmap"); |
| } |
| |
| if (fxMesa->HaveCmbExt) { |
| _mesa_enable_extension(ctx, "GL_ARB_texture_env_combine"); |
| _mesa_enable_extension(ctx, "GL_EXT_texture_env_combine"); |
| } |
| |
| if (fxMesa->HavePixExt) { |
| _mesa_enable_extension(ctx, "GL_EXT_blend_subtract"); |
| _mesa_enable_extension(ctx, "GL_EXT_blend_equation_separate"); |
| } |
| |
| if (fxMesa->HaveMirExt) { |
| _mesa_enable_extension(ctx, "GL_ARB_texture_mirrored_repeat"); |
| } |
| |
| if (fxMesa->type >= GR_SSTTYPE_Voodoo2) { |
| _mesa_enable_extension(ctx, "GL_EXT_fog_coord"); |
| } |
| |
| /* core-level extensions */ |
| _mesa_enable_extension(ctx, "GL_EXT_multi_draw_arrays"); |
| _mesa_enable_extension(ctx, "GL_IBM_multimode_draw_arrays"); |
| _mesa_enable_extension(ctx, "GL_ARB_vertex_buffer_object"); |
| /* dangerous */ |
| if (getenv("MESA_FX_ALLOW_VP")) { |
| _mesa_enable_extension(ctx, "GL_ARB_vertex_program"); |
| _mesa_enable_extension(ctx, "GL_NV_vertex_program"); |
| _mesa_enable_extension(ctx, "GL_NV_vertex_program1_1"); |
| _mesa_enable_extension(ctx, "GL_MESA_program_debug"); |
| } |
| #if 0 |
| /* this requires _tnl_vertex_cull_stage in the pipeline */ |
| _mesa_enable_extension(ctx, "EXT_cull_vertex"); |
| #endif |
| } |
| |
| |
| /************************************************************************/ |
| /************************************************************************/ |
| /************************************************************************/ |
| |
| /* Check if the hardware supports the current context |
| * |
| * Performs similar work to fxDDChooseRenderState() - should be merged. |
| */ |
| GLuint |
| fx_check_IsInHardware(GLcontext * ctx) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| if (ctx->RenderMode != GL_RENDER) { |
| return FX_FALLBACK_RENDER_MODE; |
| } |
| |
| if (ctx->Stencil.Enabled && !fxMesa->haveHwStencil) { |
| return FX_FALLBACK_STENCIL; |
| } |
| |
| if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) && |
| (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT)) { |
| return FX_FALLBACK_DRAW_BUFFER; |
| } |
| |
| if (ctx->Color.BlendEnabled) { |
| if (ctx->Color.BlendEquationRGB != GL_FUNC_ADD) { |
| if (!fxMesa->HavePixExt || |
| ((ctx->Color.BlendEquationRGB != GL_FUNC_SUBTRACT) && |
| (ctx->Color.BlendEquationRGB != GL_FUNC_REVERSE_SUBTRACT))) { |
| return FX_FALLBACK_BLEND; |
| } |
| } |
| |
| if (ctx->Color.BlendEquationA != GL_FUNC_ADD) { |
| if (!fxMesa->HavePixExt || |
| ((ctx->Color.BlendEquationA != GL_FUNC_SUBTRACT) && |
| (ctx->Color.BlendEquationA != GL_FUNC_REVERSE_SUBTRACT))) { |
| return FX_FALLBACK_BLEND; |
| } |
| } |
| |
| #if 0 |
| /* [dBorca] |
| * We fail the spec here, unless certain blending modes: |
| * RGB: (GL_ONE + GL_*) or (GL_ZERO + GL_*) or ... |
| */ |
| if (NEED_SECONDARY_COLOR(ctx)) { |
| if ((ctx->Color.BlendEquationRGB != GL_FUNC_ADD) && |
| (ctx->Color.BlendSrcRGB != GL_ONE)) { |
| /* Can't use multipass to blend ColorSum stage */ |
| return FX_FALLBACK_SPECULAR; |
| } |
| } |
| #endif |
| } |
| |
| /* [dBorca] |
| * We could avoid this for certain `sfactor/dfactor' |
| * I do not think that is even worthwhile to check |
| * because if someone is using blending they use more |
| * interesting settings and also it would add more |
| * state tracking to a lot of the code. |
| */ |
| if (ctx->Color.ColorLogicOpEnabled && (ctx->Color.LogicOp != GL_COPY)) { |
| return FX_FALLBACK_LOGICOP; |
| } |
| |
| if ((fxMesa->colDepth != 32) && |
| ((ctx->Color.ColorMask[RCOMP] != ctx->Color.ColorMask[GCOMP]) || |
| (ctx->Color.ColorMask[GCOMP] != ctx->Color.ColorMask[BCOMP]))) { |
| return FX_FALLBACK_COLORMASK; |
| } |
| |
| /* Unsupported texture/multitexture cases */ |
| |
| /* we can only do 1D/2D textures */ |
| if (ctx->Texture.Unit[0]._ReallyEnabled & ~(TEXTURE_1D_BIT|TEXTURE_2D_BIT)) |
| return FX_FALLBACK_TEXTURE_MAP; |
| |
| if (fxMesa->haveTwoTMUs) { |
| if (ctx->Texture.Unit[1]._ReallyEnabled & ~(TEXTURE_1D_BIT|TEXTURE_2D_BIT)) |
| return FX_FALLBACK_TEXTURE_MAP; |
| |
| if (ctx->Texture.Unit[0]._ReallyEnabled) { |
| if (fxMesa->type < GR_SSTTYPE_Voodoo2) |
| if (ctx->Texture.Unit[0].EnvMode == GL_BLEND && |
| (ctx->Texture.Unit[1]._ReallyEnabled || |
| ctx->Texture.Unit[0].EnvColor[0] != 0 || |
| ctx->Texture.Unit[0].EnvColor[1] != 0 || |
| ctx->Texture.Unit[0].EnvColor[2] != 0 || |
| ctx->Texture.Unit[0].EnvColor[3] != 1)) { |
| return FX_FALLBACK_TEXTURE_ENV; |
| } |
| if (ctx->Texture.Unit[0]._Current->Image[0][0]->Border > 0) |
| return FX_FALLBACK_TEXTURE_BORDER; |
| } |
| |
| if (ctx->Texture.Unit[1]._ReallyEnabled) { |
| if (fxMesa->type < GR_SSTTYPE_Voodoo2) |
| if (ctx->Texture.Unit[1].EnvMode == GL_BLEND) |
| return FX_FALLBACK_TEXTURE_ENV; |
| if (ctx->Texture.Unit[1]._Current->Image[0][0]->Border > 0) |
| return FX_FALLBACK_TEXTURE_BORDER; |
| } |
| |
| if (TDFX_DEBUG & (VERBOSE_DRIVER | VERBOSE_TEXTURE)) |
| fprintf(stderr, "fx_check_IsInHardware: envmode is %s/%s\n", |
| _mesa_lookup_enum_by_nr(ctx->Texture.Unit[0].EnvMode), |
| _mesa_lookup_enum_by_nr(ctx->Texture.Unit[1].EnvMode)); |
| |
| /* KW: This was wrong (I think) and I changed it... which doesn't mean |
| * it is now correct... |
| * BP: The old condition just seemed to test if both texture units |
| * were enabled. That's easy! |
| */ |
| if (ctx->Texture._EnabledUnits == 0x3) { |
| #if 0 |
| /* Can't use multipass to blend a multitextured triangle - fall |
| * back to software. |
| */ |
| if (!fxMesa->haveTwoTMUs && ctx->Color.BlendEnabled) { |
| return FX_FALLBACK_TEXTURE_MULTI; |
| } |
| #endif |
| |
| if (!fxMesa->HaveCmbExt && |
| (ctx->Texture.Unit[0].EnvMode != ctx->Texture.Unit[1].EnvMode) && |
| (ctx->Texture.Unit[0].EnvMode != GL_MODULATE) && |
| (ctx->Texture.Unit[0].EnvMode != GL_REPLACE)) { /* q2, seems ok... */ |
| if (TDFX_DEBUG & VERBOSE_DRIVER) |
| fprintf(stderr, "fx_check_IsInHardware: unsupported multitex env mode\n"); |
| return FX_FALLBACK_TEXTURE_MULTI; |
| } |
| } |
| } |
| else { |
| /* we have just one texture unit */ |
| if (ctx->Texture._EnabledUnits > 0x1) { |
| return FX_FALLBACK_TEXTURE_MULTI; |
| } |
| |
| if (fxMesa->type < GR_SSTTYPE_Voodoo2) |
| if (ctx->Texture.Unit[0]._ReallyEnabled && |
| (ctx->Texture.Unit[0].EnvMode == GL_BLEND)) { |
| return FX_FALLBACK_TEXTURE_ENV; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| |
| static void |
| fxDDUpdateDDPointers(GLcontext * ctx, GLuint new_state) |
| { |
| /* TNLcontext *tnl = TNL_CONTEXT(ctx); */ |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| |
| if (TDFX_DEBUG & VERBOSE_DRIVER) { |
| fprintf(stderr, "fxDDUpdateDDPointers(%08x)\n", new_state); |
| } |
| |
| _swrast_InvalidateState(ctx, new_state); |
| _vbo_InvalidateState(ctx, new_state); |
| _tnl_InvalidateState(ctx, new_state); |
| _swsetup_InvalidateState(ctx, new_state); |
| |
| fxMesa->new_gl_state |= new_state; |
| } |
| |
| |
| |
| |
| void |
| fxSetupDDPointers(GLcontext * ctx) |
| { |
| fxMesaContext fxMesa = FX_CONTEXT(ctx); |
| /* TNLcontext *tnl = TNL_CONTEXT(ctx); */ |
| |
| if (TDFX_DEBUG & VERBOSE_DRIVER) { |
| fprintf(stderr, "fxSetupDDPointers()\n"); |
| } |
| |
| ctx->Driver.UpdateState = fxDDUpdateDDPointers; |
| ctx->Driver.GetString = fxDDGetString; |
| ctx->Driver.ClearIndex = NULL; |
| ctx->Driver.ClearColor = fxDDClearColor; |
| ctx->Driver.Clear = fxDDClear; |
| ctx->Driver.DrawBuffer = fxDDSetDrawBuffer; |
| ctx->Driver.GetBufferSize = fxDDGetBufferSize; |
| ctx->Driver.Viewport = fxDDViewport; |
| switch (fxMesa->colDepth) { |
| case 15: |
| ctx->Driver.DrawPixels = fxDDDrawPixels555; |
| ctx->Driver.ReadPixels = fxDDReadPixels555; |
| ctx->Driver.Bitmap = fxDDDrawBitmap2; |
| break; |
| case 16: |
| ctx->Driver.DrawPixels = !fxMesa->bgrOrder ? fxDDDrawPixels565 : fxDDDrawPixels565_rev; |
| ctx->Driver.ReadPixels = fxDDReadPixels565; |
| ctx->Driver.Bitmap = fxDDDrawBitmap2; |
| break; |
| case 32: |
| ctx->Driver.DrawPixels = fxDDDrawPixels8888; |
| ctx->Driver.ReadPixels = fxDDReadPixels8888; |
| ctx->Driver.Bitmap = fxDDDrawBitmap4; |
| break; |
| } |
| ctx->Driver.Finish = fxDDFinish; |
| ctx->Driver.Flush = NULL; |
| ctx->Driver.ChooseTextureFormat = fxDDChooseTextureFormat; |
| ctx->Driver.TexImage1D = fxDDTexImage1D; |
| ctx->Driver.TexImage2D = fxDDTexImage2D; |
| ctx->Driver.TexSubImage1D = fxDDTexSubImage1D; |
| ctx->Driver.TexSubImage2D = fxDDTexSubImage2D; |
| ctx->Driver.CompressedTexImage2D = fxDDCompressedTexImage2D; |
| ctx->Driver.CompressedTexSubImage2D = fxDDCompressedTexSubImage2D; |
| ctx->Driver.TestProxyTexImage = fxDDTestProxyTexImage; |
| ctx->Driver.TexEnv = fxDDTexEnv; |
| ctx->Driver.TexParameter = fxDDTexParam; |
| ctx->Driver.BindTexture = fxDDTexBind; |
| ctx->Driver.DeleteTexture = fxDDTexDel; |
| ctx->Driver.IsTextureResident = fxDDIsTextureResident; |
| ctx->Driver.UpdateTexturePalette = fxDDTexPalette; |
| ctx->Driver.AlphaFunc = fxDDAlphaFunc; |
| ctx->Driver.BlendFuncSeparate = fxDDBlendFuncSeparate; |
| ctx->Driver.BlendEquationSeparate = fxDDBlendEquationSeparate; |
| ctx->Driver.DepthFunc = fxDDDepthFunc; |
| ctx->Driver.DepthMask = fxDDDepthMask; |
| ctx->Driver.ColorMask = fxDDColorMask; |
| ctx->Driver.Fogfv = fxDDFogfv; |
| ctx->Driver.Scissor = fxDDScissor; |
| ctx->Driver.FrontFace = fxDDFrontFace; |
| ctx->Driver.CullFace = fxDDCullFace; |
| ctx->Driver.ShadeModel = fxDDShadeModel; |
| ctx->Driver.Enable = fxDDEnable; |
| if (fxMesa->haveHwStencil) { |
| ctx->Driver.StencilFuncSeparate = fxDDStencilFuncSeparate; |
| ctx->Driver.StencilMaskSeparate = fxDDStencilMaskSeparate; |
| ctx->Driver.StencilOpSeparate = fxDDStencilOpSeparate; |
| } |
| |
| fxSetupDDSpanPointers(ctx); |
| fxDDUpdateDDPointers(ctx, ~0); |
| } |
| |
| |
| #else |
| |
| |
| /* |
| * Need this to provide at least one external definition. |
| */ |
| |
| extern int gl_fx_dummy_function_dd(void); |
| int |
| gl_fx_dummy_function_dd(void) |
| { |
| return 0; |
| } |
| |
| #endif /* FX */ |