| /* |
| * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. |
| * Copyright 2001-2003 S3 Graphics, Inc. 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, sub license, |
| * 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VIA, S3 GRAPHICS, 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. |
| */ |
| |
| #include "glheader.h" |
| #include "macros.h" |
| #include "mtypes.h" |
| #include "colormac.h" |
| #include "via_context.h" |
| #include "via_span.h" |
| #include "via_ioctl.h" |
| #include "swrast/swrast.h" |
| |
| #define DBG 0 |
| |
| #define Y_FLIP(_y) (height - _y - 1) |
| |
| #define HW_LOCK() |
| |
| #define HW_UNLOCK() |
| |
| #undef LOCAL_VARS |
| #define LOCAL_VARS \ |
| struct via_renderbuffer *vrb = (struct via_renderbuffer *) rb; \ |
| __DRIdrawablePrivate *dPriv = vrb->dPriv; \ |
| GLuint pitch = vrb->pitch; \ |
| GLuint height = dPriv->h; \ |
| GLint p = 0; \ |
| char *buf = (char *)(vrb->origMap); \ |
| (void) p; |
| |
| /* ================================================================ |
| * Color buffer |
| */ |
| |
| /* 16 bit, RGB565 color spanline and pixel functions |
| */ |
| #define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch) |
| #define SPANTMP_PIXEL_FMT GL_RGB |
| #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5 |
| |
| #define TAG(x) via##x##_565 |
| #define TAG2(x,y) via##x##_565##y |
| #include "spantmp2.h" |
| |
| |
| /* 32 bit, ARGB8888 color spanline and pixel functions |
| */ |
| #define GET_PTR(_x, _y) (buf + (_x) * 4 + (_y) * pitch) |
| #define SPANTMP_PIXEL_FMT GL_BGRA |
| #define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV |
| |
| #define TAG(x) via##x##_8888 |
| #define TAG2(x,y) via##x##_8888##y |
| #include "spantmp2.h" |
| |
| |
| /* 16 bit depthbuffer functions. |
| */ |
| #define LOCAL_DEPTH_VARS \ |
| struct via_renderbuffer *vrb = (struct via_renderbuffer *) rb; \ |
| __DRIdrawablePrivate *dPriv = vrb->dPriv; \ |
| GLuint depth_pitch = vrb->pitch; \ |
| GLuint height = dPriv->h; \ |
| char *buf = (char *)(vrb->map) |
| |
| #define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS |
| |
| #define VALUE_TYPE GLushort |
| |
| #define WRITE_DEPTH(_x, _y, d) \ |
| *(GLushort *)(buf + (_x) * 2 + (_y) * depth_pitch) = d; |
| |
| #define READ_DEPTH(d, _x, _y) \ |
| d = *(volatile GLushort *)(buf + (_x) * 2 + (_y) * depth_pitch); |
| |
| #define TAG(x) via##x##_z16 |
| #include "depthtmp.h" |
| |
| /* 32 bit depthbuffer functions. |
| */ |
| #define VALUE_TYPE GLuint |
| |
| #define WRITE_DEPTH(_x, _y, d) \ |
| *(GLuint *)(buf + (_x) * 4 + (_y) * depth_pitch) = d; |
| |
| #define READ_DEPTH(d, _x, _y) \ |
| d = *(volatile GLuint *)(buf + (_x) * 4 + (_y) * depth_pitch); |
| |
| #define TAG(x) via##x##_z32 |
| #include "depthtmp.h" |
| |
| |
| |
| /* 24/8 bit interleaved depth/stencil functions |
| */ |
| #define VALUE_TYPE GLuint |
| |
| #define WRITE_DEPTH( _x, _y, d ) { \ |
| GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch); \ |
| tmp &= 0x000000ff; \ |
| tmp |= ((d)<<8); \ |
| *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch) = tmp; \ |
| } |
| |
| #define READ_DEPTH( d, _x, _y ) \ |
| d = (*(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch)) >> 8; |
| |
| |
| #define TAG(x) via##x##_z24_s8 |
| #include "depthtmp.h" |
| |
| #define WRITE_STENCIL( _x, _y, d ) { \ |
| GLuint tmp = *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch); \ |
| tmp &= 0xffffff00; \ |
| tmp |= (d); \ |
| *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch) = tmp; \ |
| } |
| |
| #define READ_STENCIL( d, _x, _y ) \ |
| d = *(GLuint *)(buf + (_x)*4 + (_y)*depth_pitch) & 0xff; |
| |
| #define TAG(x) via##x##_z24_s8 |
| #include "stenciltmp.h" |
| |
| |
| |
| |
| /* Move locking out to get reasonable span performance. |
| */ |
| void viaSpanRenderStart( GLcontext *ctx ) |
| { |
| struct via_context *vmesa = VIA_CONTEXT(ctx); |
| viaWaitIdle(vmesa, GL_FALSE); |
| LOCK_HARDWARE(vmesa); |
| } |
| |
| void viaSpanRenderFinish( GLcontext *ctx ) |
| { |
| struct via_context *vmesa = VIA_CONTEXT(ctx); |
| _swrast_flush( ctx ); |
| UNLOCK_HARDWARE( vmesa ); |
| } |
| |
| void viaInitSpanFuncs(GLcontext *ctx) |
| { |
| struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx); |
| swdd->SpanRenderStart = viaSpanRenderStart; |
| swdd->SpanRenderFinish = viaSpanRenderFinish; |
| } |
| |
| |
| |
| /** |
| * Plug in the Get/Put routines for the given driRenderbuffer. |
| */ |
| void |
| viaSetSpanFunctions(struct via_renderbuffer *vrb, const GLvisual *vis) |
| { |
| if (vrb->Base.InternalFormat == GL_RGBA) { |
| if (vis->redBits == 5 && vis->greenBits == 6 && vis->blueBits == 5) { |
| viaInitPointers_565(&vrb->Base); |
| } |
| else { |
| viaInitPointers_8888(&vrb->Base); |
| } |
| } |
| else if (vrb->Base.InternalFormat == GL_DEPTH_COMPONENT16) { |
| viaInitDepthPointers_z16(&vrb->Base); |
| } |
| else if (vrb->Base.InternalFormat == GL_DEPTH_COMPONENT24) { |
| viaInitDepthPointers_z24_s8(&vrb->Base); |
| } |
| else if (vrb->Base.InternalFormat == GL_DEPTH_COMPONENT32) { |
| viaInitDepthPointers_z32(&vrb->Base); |
| } |
| else if (vrb->Base.InternalFormat == GL_STENCIL_INDEX8_EXT) { |
| viaInitStencilPointers_z24_s8(&vrb->Base); |
| } |
| } |