| /* |
| Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. |
| |
| The Weather Channel (TM) funded Tungsten Graphics to develop the |
| initial release of the Radeon 8500 driver under the XFree86 license. |
| This notice must be preserved. |
| |
| 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 (including the |
| next paragraph) 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 THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS 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: |
| * Keith Whitwell <keith@tungstengraphics.com> |
| */ |
| |
| #include "glheader.h" |
| #include "enums.h" |
| #include "mtypes.h" |
| #include "macros.h" |
| #include "swrast/swrast.h" |
| |
| #include "r200_context.h" |
| #include "r200_ioctl.h" |
| #include "r200_pixel.h" |
| #include "r200_swtcl.h" |
| |
| #include "drirenderbuffer.h" |
| |
| |
| static GLboolean |
| check_color( const GLcontext *ctx, GLenum type, GLenum format, |
| const struct gl_pixelstore_attrib *packing, |
| const void *pixels, GLint sz, GLint pitch ) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| GLuint cpp = rmesa->r200Screen->cpp; |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| if ( (pitch & 63) || |
| ctx->_ImageTransferState || |
| packing->SwapBytes || |
| packing->LsbFirst) { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: failed 1\n", __FUNCTION__); |
| return GL_FALSE; |
| } |
| |
| if ( type == GL_UNSIGNED_INT_8_8_8_8_REV && |
| cpp == 4 && |
| format == GL_BGRA ) { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: passed 2\n", __FUNCTION__); |
| return GL_TRUE; |
| } |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: failed\n", __FUNCTION__); |
| |
| return GL_FALSE; |
| } |
| |
| static GLboolean |
| check_color_per_fragment_ops( const GLcontext *ctx ) |
| { |
| int result; |
| result = (!( ctx->Color.AlphaEnabled || |
| ctx->Depth.Test || |
| ctx->Fog.Enabled || |
| ctx->Scissor.Enabled || |
| ctx->Stencil.Enabled || |
| !ctx->Color.ColorMask[0] || |
| !ctx->Color.ColorMask[1] || |
| !ctx->Color.ColorMask[2] || |
| !ctx->Color.ColorMask[3] || |
| ctx->Color.ColorLogicOpEnabled || |
| ctx->Texture._EnabledUnits |
| ) && |
| ctx->Current.RasterPosValid); |
| |
| return result; |
| } |
| |
| |
| |
| static GLboolean |
| clip_pixelrect( const GLcontext *ctx, |
| const GLframebuffer *buffer, |
| GLint *x, GLint *y, |
| GLsizei *width, GLsizei *height, |
| GLint *size ) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| |
| /* left clipping */ |
| if (*x < buffer->_Xmin) { |
| *width -= (buffer->_Xmin - *x); |
| *x = buffer->_Xmin; |
| } |
| |
| /* right clipping */ |
| if (*x + *width > buffer->_Xmax) |
| *width -= (*x + *width - buffer->_Xmax - 1); |
| |
| if (*width <= 0) |
| return GL_FALSE; |
| |
| /* bottom clipping */ |
| if (*y < buffer->_Ymin) { |
| *height -= (buffer->_Ymin - *y); |
| *y = buffer->_Ymin; |
| } |
| |
| /* top clipping */ |
| if (*y + *height > buffer->_Ymax) |
| *height -= (*y + *height - buffer->_Ymax - 1); |
| |
| if (*height <= 0) |
| return GL_FALSE; |
| |
| *size = ((*y + *height - 1) * rmesa->r200Screen->frontPitch + |
| (*x + *width - 1) * rmesa->r200Screen->cpp); |
| |
| return GL_TRUE; |
| } |
| |
| static GLboolean |
| r200TryReadPixels( GLcontext *ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *pack, |
| GLvoid *pixels ) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| GLint pitch = pack->RowLength ? pack->RowLength : width; |
| GLint blit_format; |
| GLuint cpp = rmesa->r200Screen->cpp; |
| GLint size = width * height * cpp; |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| /* Only accelerate reading to GART buffers. |
| */ |
| if ( !r200IsGartMemory(rmesa, pixels, |
| pitch * height * rmesa->r200Screen->cpp ) ) { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: dest not GART\n", __FUNCTION__); |
| return GL_FALSE; |
| } |
| |
| /* Need GL_PACK_INVERT_MESA to cope with upsidedown results from |
| * blitter: |
| */ |
| if (!pack->Invert) { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: MESA_PACK_INVERT not set\n", __FUNCTION__); |
| return GL_FALSE; |
| } |
| |
| if (!check_color(ctx, type, format, pack, pixels, size, pitch)) |
| return GL_FALSE; |
| |
| switch ( rmesa->r200Screen->cpp ) { |
| case 4: |
| blit_format = R200_CP_COLOR_FORMAT_ARGB8888; |
| break; |
| default: |
| return GL_FALSE; |
| } |
| |
| |
| /* Although the blits go on the command buffer, need to do this and |
| * fire with lock held to guarentee cliprects and drawOffset are |
| * correct. |
| * |
| * This is an unusual situation however, as the code which flushes |
| * a full command buffer expects to be called unlocked. As a |
| * workaround, immediately flush the buffer on aquiring the lock. |
| */ |
| LOCK_HARDWARE( rmesa ); |
| |
| if (rmesa->store.cmd_used) |
| r200FlushCmdBufLocked( rmesa, __FUNCTION__ ); |
| |
| if (!clip_pixelrect(ctx, ctx->ReadBuffer, &x, &y, &width, &height, |
| &size)) { |
| UNLOCK_HARDWARE( rmesa ); |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s totally clipped -- nothing to do\n", |
| __FUNCTION__); |
| return GL_TRUE; |
| } |
| |
| { |
| __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; |
| driRenderbuffer *drb = (driRenderbuffer *) ctx->ReadBuffer->_ColorReadBuffer; |
| int nbox = dPriv->numClipRects; |
| int src_offset = drb->offset |
| + rmesa->r200Screen->fbLocation; |
| int src_pitch = drb->pitch * drb->cpp; |
| int dst_offset = r200GartOffsetFromVirtual( rmesa, pixels ); |
| int dst_pitch = pitch * rmesa->r200Screen->cpp; |
| drm_clip_rect_t *box = dPriv->pClipRects; |
| int i; |
| |
| r200EmitWait( rmesa, RADEON_WAIT_3D ); |
| |
| y = dPriv->h - y - height; |
| x += dPriv->x; |
| y += dPriv->y; |
| |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "readpixel blit src_pitch %d dst_pitch %d\n", |
| src_pitch, dst_pitch); |
| |
| for (i = 0 ; i < nbox ; i++) |
| { |
| GLint bx = box[i].x1; |
| GLint by = box[i].y1; |
| GLint bw = box[i].x2 - bx; |
| GLint bh = box[i].y2 - by; |
| |
| if (bx < x) bw -= x - bx, bx = x; |
| if (by < y) bh -= y - by, by = y; |
| if (bx + bw > x + width) bw = x + width - bx; |
| if (by + bh > y + height) bh = y + height - by; |
| if (bw <= 0) continue; |
| if (bh <= 0) continue; |
| |
| r200EmitBlit( rmesa, |
| blit_format, |
| src_pitch, src_offset, |
| dst_pitch, dst_offset, |
| bx, by, |
| bx - x, by - y, |
| bw, bh ); |
| } |
| |
| r200FlushCmdBufLocked( rmesa, __FUNCTION__ ); |
| } |
| UNLOCK_HARDWARE( rmesa ); |
| |
| r200Finish( ctx ); /* required by GL */ |
| |
| return GL_TRUE; |
| } |
| |
| static void |
| r200ReadPixels( GLcontext *ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *pack, |
| GLvoid *pixels ) |
| { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| if (!r200TryReadPixels( ctx, x, y, width, height, format, type, pack, |
| pixels)) |
| _swrast_ReadPixels( ctx, x, y, width, height, format, type, pack, |
| pixels); |
| } |
| |
| |
| |
| |
| static void do_draw_pix( GLcontext *ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLint pitch, |
| const void *pixels, |
| GLuint planemask) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| __DRIdrawablePrivate *dPriv = rmesa->dri.drawable; |
| drm_clip_rect_t *box = dPriv->pClipRects; |
| struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorDrawBuffers[0]; |
| driRenderbuffer *drb = (driRenderbuffer *) rb; |
| int nbox = dPriv->numClipRects; |
| int i; |
| int blit_format; |
| int size; |
| int src_offset = r200GartOffsetFromVirtual( rmesa, pixels ); |
| int src_pitch = pitch * rmesa->r200Screen->cpp; |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| switch ( rmesa->r200Screen->cpp ) { |
| case 2: |
| blit_format = R200_CP_COLOR_FORMAT_RGB565; |
| break; |
| case 4: |
| blit_format = R200_CP_COLOR_FORMAT_ARGB8888; |
| break; |
| default: |
| return; |
| } |
| |
| |
| LOCK_HARDWARE( rmesa ); |
| |
| if (rmesa->store.cmd_used) |
| r200FlushCmdBufLocked( rmesa, __FUNCTION__ ); |
| |
| y -= height; /* cope with pixel zoom */ |
| |
| if (!clip_pixelrect(ctx, ctx->DrawBuffer, |
| &x, &y, &width, &height, |
| &size)) { |
| UNLOCK_HARDWARE( rmesa ); |
| return; |
| } |
| |
| y = dPriv->h - y - height; /* convert from gl to hardware coords */ |
| x += dPriv->x; |
| y += dPriv->y; |
| |
| |
| r200EmitWait( rmesa, RADEON_WAIT_3D ); |
| |
| for (i = 0 ; i < nbox ; i++ ) |
| { |
| GLint bx = box[i].x1; |
| GLint by = box[i].y1; |
| GLint bw = box[i].x2 - bx; |
| GLint bh = box[i].y2 - by; |
| |
| if (bx < x) bw -= x - bx, bx = x; |
| if (by < y) bh -= y - by, by = y; |
| if (bx + bw > x + width) bw = x + width - bx; |
| if (by + bh > y + height) bh = y + height - by; |
| if (bw <= 0) continue; |
| if (bh <= 0) continue; |
| |
| r200EmitBlit( rmesa, |
| blit_format, |
| src_pitch, src_offset, |
| drb->pitch * drb->cpp, |
| drb->offset + rmesa->r200Screen->fbLocation, |
| bx - x, by - y, |
| bx, by, |
| bw, bh ); |
| } |
| |
| r200FlushCmdBufLocked( rmesa, __FUNCTION__ ); |
| r200WaitForIdleLocked( rmesa ); /* required by GL */ |
| UNLOCK_HARDWARE( rmesa ); |
| } |
| |
| |
| |
| |
| static GLboolean |
| r200TryDrawPixels( GLcontext *ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid *pixels ) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| GLint pitch = unpack->RowLength ? unpack->RowLength : width; |
| GLuint planemask; |
| GLuint cpp = rmesa->r200Screen->cpp; |
| GLint size = height * pitch * cpp; |
| |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| /* check that we're drawing to exactly one color buffer */ |
| if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) |
| return GL_FALSE; |
| |
| switch (format) { |
| case GL_RGB: |
| case GL_RGBA: |
| case GL_BGRA: |
| planemask = r200PackColor(cpp, |
| ctx->Color.ColorMask[RCOMP], |
| ctx->Color.ColorMask[GCOMP], |
| ctx->Color.ColorMask[BCOMP], |
| ctx->Color.ColorMask[ACOMP]); |
| |
| if (cpp == 2) |
| planemask |= planemask << 16; |
| |
| if (planemask != ~0) |
| return GL_FALSE; /* fix me -- should be possible */ |
| |
| /* Can't do conversions on GART reads/draws. |
| */ |
| if ( !r200IsGartMemory( rmesa, pixels, size ) ) { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s: not GART memory\n", __FUNCTION__); |
| return GL_FALSE; |
| } |
| |
| if (!check_color(ctx, type, format, unpack, pixels, size, pitch)) { |
| return GL_FALSE; |
| } |
| if (!check_color_per_fragment_ops(ctx)) { |
| return GL_FALSE; |
| } |
| |
| if (ctx->Pixel.ZoomX != 1.0F || |
| ctx->Pixel.ZoomY != -1.0F) |
| return GL_FALSE; |
| break; |
| |
| default: |
| return GL_FALSE; |
| } |
| |
| if ( r200IsGartMemory(rmesa, pixels, size) ) |
| { |
| do_draw_pix( ctx, x, y, width, height, pitch, pixels, planemask ); |
| return GL_TRUE; |
| } |
| else if (0) |
| { |
| /* Pixels is in regular memory -- get dma buffers and perform |
| * upload through them. |
| */ |
| } |
| else |
| return GL_FALSE; |
| } |
| |
| static void |
| r200DrawPixels( GLcontext *ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid *pixels ) |
| { |
| if (R200_DEBUG & DEBUG_PIXEL) |
| fprintf(stderr, "%s\n", __FUNCTION__); |
| |
| if (!r200TryDrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels )) |
| _swrast_DrawPixels( ctx, x, y, width, height, format, type, |
| unpack, pixels ); |
| } |
| |
| |
| static void |
| r200Bitmap( GLcontext *ctx, GLint px, GLint py, |
| GLsizei width, GLsizei height, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLubyte *bitmap ) |
| { |
| r200ContextPtr rmesa = R200_CONTEXT(ctx); |
| |
| if (rmesa->Fallback) |
| _swrast_Bitmap( ctx, px, py, width, height, unpack, bitmap ); |
| else |
| r200PointsBitmap( ctx, px, py, width, height, unpack, bitmap ); |
| } |
| |
| |
| |
| void r200InitPixelFuncs( GLcontext *ctx ) |
| { |
| if (!getenv("R200_NO_BLITS")) { |
| ctx->Driver.ReadPixels = r200ReadPixels; |
| ctx->Driver.DrawPixels = r200DrawPixels; |
| if (getenv("R200_HW_BITMAP")) |
| ctx->Driver.Bitmap = r200Bitmap; |
| } |
| } |