+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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 TUNGSTEN 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 "intel_fbo.h"
-#include "intel_screen.h"
-#include "intel_span.h"
-#include "intel_ioctl.h"
-#include "intel_tex.h"
-
-#include "swrast/swrast.h"
-
-#include "pipe/p_context.h"
-
-/*
- break intelWriteRGBASpan_ARGB8888
-*/
-
-#undef DBG
-#define DBG 0
-
-#define LOCAL_VARS \
- struct intel_renderbuffer *irb = intel_renderbuffer(rb); \
- const GLint yScale = irb->RenderToTexture ? 1 : -1; \
- const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \
- GLubyte *buf = (GLubyte *) irb->pfMap; \
- GLuint p; \
- assert(irb->pfMap);\
- (void) p;
-
-/* There is just a single cliploop!
- */
-#define HW_CLIPLOOP() \
- do { \
- int minx = 0; \
- int miny = 0; \
- int maxx = irb->Base.Width - 1; \
- int maxy = irb->Base.Height - 1;
-
-#define HW_ENDCLIPLOOP() \
- } while (0)
-
-
-#define Y_FLIP(_y) ((_y) * yScale + yBias)
-
-#define HW_LOCK()
-
-#define HW_UNLOCK()
-
-/* 16 bit, RGB565 color spanline and pixel functions
- */
-#define SPANTMP_PIXEL_FMT GL_RGB
-#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_SHORT_5_6_5
-
-#define TAG(x) intel##x##_RGB565
-#define TAG2(x,y) intel##x##_RGB565##y
-#define GET_PTR(X,Y) (buf + ((Y) * irb->pfPitch + (X)) * 2)
-#include "spantmp2.h"
-
-/* 32 bit, ARGB8888 color spanline and pixel functions
- */
-#define SPANTMP_PIXEL_FMT GL_BGRA
-#define SPANTMP_PIXEL_TYPE GL_UNSIGNED_INT_8_8_8_8_REV
-
-#define TAG(x) intel##x##_ARGB8888
-#define TAG2(x,y) intel##x##_ARGB8888##y
-#define GET_PTR(X,Y) (buf + ((Y) * irb->pfPitch + (X)) * 4)
-#include "spantmp2.h"
-
-
-#define LOCAL_DEPTH_VARS \
- struct intel_renderbuffer *irb = intel_renderbuffer(rb); \
- const GLuint pitch = irb->pfPitch/***XXX region->pitch*/; /* in pixels */ \
- const GLint yScale = irb->RenderToTexture ? 1 : -1; \
- const GLint yBias = irb->RenderToTexture ? 0 : irb->Base.Height - 1; \
- char *buf = (char *) irb->pfMap/*XXX use region->map*/ ;
-
-#define LOCAL_STENCIL_VARS LOCAL_DEPTH_VARS
-
-/**
- ** 16-bit depthbuffer functions.
- **/
-#define WRITE_DEPTH( _x, _y, d ) \
- ((GLushort *)buf)[(_x) + (_y) * pitch] = d;
-
-#define READ_DEPTH( d, _x, _y ) \
- d = ((GLushort *)buf)[(_x) + (_y) * pitch];
-
-
-#define TAG(x) intel##x##_z16
-#include "depthtmp.h"
-
-
-/**
- ** 24/8-bit interleaved depth/stencil functions
- ** Note: we're actually reading back combined depth+stencil values.
- ** The wrappers in main/depthstencil.c are used to extract the depth
- ** and stencil values.
- **/
-/* Change ZZZS -> SZZZ */
-#define WRITE_DEPTH( _x, _y, d ) { \
- GLuint tmp = ((d) >> 8) | ((d) << 24); \
- ((GLuint *)buf)[(_x) + (_y) * pitch] = tmp; \
-}
-
-/* Change SZZZ -> ZZZS */
-#define READ_DEPTH( d, _x, _y ) { \
- GLuint tmp = ((GLuint *)buf)[(_x) + (_y) * pitch]; \
- d = (tmp << 8) | (tmp >> 24); \
-}
-
-#define TAG(x) intel##x##_z24_s8
-#include "depthtmp.h"
-
-
-/**
- ** 8-bit stencil function (XXX FBO: This is obsolete)
- **/
-#define WRITE_STENCIL( _x, _y, d ) { \
- GLuint tmp = ((GLuint *)buf)[(_x) + (_y) * pitch]; \
- tmp &= 0xffffff; \
- tmp |= ((d) << 24); \
- ((GLuint *) buf)[(_x) + (_y) * pitch] = tmp; \
-}
-
-#define READ_STENCIL( d, _x, _y ) \
- d = ((GLuint *)buf)[(_x) + (_y) * pitch] >> 24;
-
-#define TAG(x) intel##x##_z24_s8
-#include "stenciltmp.h"
-
-
-
-/**
- * Map or unmap all the renderbuffers which we may need during
- * software rendering.
- * XXX in the future, we could probably convey extra information to
- * reduce the number of mappings needed. I.e. if doing a glReadPixels
- * from the depth buffer, we really only need one mapping.
- *
- * XXX Rewrite this function someday.
- * We can probably just loop over all the renderbuffer attachments,
- * map/unmap all of them, and not worry about the _ColorDrawBuffers
- * _ColorReadBuffer, _DepthBuffer or _StencilBuffer fields.
- */
-static void
-intel_map_unmap_buffers(struct intel_context *intel, GLboolean map)
-{
- GLcontext *ctx = &intel->ctx;
- GLuint i, j;
- struct intel_renderbuffer *irb;
-
- /* color draw buffers */
- for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
- for (j = 0; j < ctx->DrawBuffer->_NumColorDrawBuffers[i]; j++) {
- struct gl_renderbuffer *rb =
- ctx->DrawBuffer->_ColorDrawBuffers[i][j];
- irb = intel_renderbuffer(rb);
- if (irb) {
- /* this is a user-created intel_renderbuffer */
- if (irb->region) {
- if (map)
- intel->pipe->region_map(intel->pipe, irb->region);
- else
- intel->pipe->region_unmap(intel->pipe, irb->region);
- }
- irb->pfMap = irb->region->map;
- irb->pfPitch = irb->region->pitch;
- }
- }
- }
-
- /* check for render to textures */
- for (i = 0; i < BUFFER_COUNT; i++) {
- struct gl_renderbuffer_attachment *att =
- ctx->DrawBuffer->Attachment + i;
- struct gl_texture_object *tex = att->Texture;
- if (tex) {
- /* render to texture */
- ASSERT(att->Renderbuffer);
- if (map) {
- struct gl_texture_image *texImg;
- texImg = tex->Image[att->CubeMapFace][att->TextureLevel];
- intel_tex_map_images(intel, intel_texture_object(tex));
- }
- else {
- intel_tex_unmap_images(intel, intel_texture_object(tex));
- }
- }
- }
-
- /* color read buffers */
- irb = intel_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
- if (irb && irb->region) {
- if (map)
- intel->pipe->region_map(intel->pipe, irb->region);
- else
- intel->pipe->region_unmap(intel->pipe, irb->region);
- irb->pfMap = irb->region->map;
- irb->pfPitch = irb->region->pitch;
- }
-
- /* Account for front/back color page flipping.
- * The span routines use the pfMap and pfPitch fields which will
- * swap the front/back region map/pitch if we're page flipped.
- * Do this after mapping, above, so the map field is valid.
- */
-#if 0
- if (map && ctx->DrawBuffer->Name == 0) {
- struct intel_renderbuffer *irbFront
- = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_FRONT_LEFT);
- struct intel_renderbuffer *irbBack
- = intel_get_renderbuffer(ctx->DrawBuffer, BUFFER_BACK_LEFT);
- if (irbBack) {
- /* double buffered */
- if (intel->sarea->pf_current_page == 0) {
- irbFront->pfMap = irbFront->region->map;
- irbFront->pfPitch = irbFront->region->pitch;
- irbBack->pfMap = irbBack->region->map;
- irbBack->pfPitch = irbBack->region->pitch;
- }
- else {
- irbFront->pfMap = irbBack->region->map;
- irbFront->pfPitch = irbBack->region->pitch;
- irbBack->pfMap = irbFront->region->map;
- irbBack->pfPitch = irbFront->region->pitch;
- }
- }
- }
-#endif
-
- /* depth buffer (Note wrapper!) */
- if (ctx->DrawBuffer->_DepthBuffer) {
- irb = intel_renderbuffer(ctx->DrawBuffer->_DepthBuffer->Wrapped);
- if (irb && irb->region) {
- if (map) {
- intel->pipe->region_map(intel->pipe, irb->region);
- irb->pfMap = irb->region->map;
- irb->pfPitch = irb->region->pitch;
- }
- else {
- intel->pipe->region_unmap(intel->pipe, irb->region);
- irb->pfMap = NULL;
- irb->pfPitch = 0;
- }
- }
- }
-
- /* stencil buffer (Note wrapper!) */
- if (ctx->DrawBuffer->_StencilBuffer) {
- irb = intel_renderbuffer(ctx->DrawBuffer->_StencilBuffer->Wrapped);
- if (irb && irb->region) {
- if (map) {
- intel->pipe->region_map(intel->pipe, irb->region);
- irb->pfMap = irb->region->map;
- irb->pfPitch = irb->region->pitch;
- }
- else {
- intel->pipe->region_unmap(intel->pipe, irb->region);
- irb->pfMap = NULL;
- irb->pfPitch = 0;
- }
- }
- }
-}
-
-
-
-/**
- * Prepare for softare rendering. Map current read/draw framebuffers'
- * renderbuffes and all currently bound texture objects.
- *
- * Old note: Moved locking out to get reasonable span performance.
- */
-void
-intelSpanRenderStart(GLcontext * ctx)
-{
- struct intel_context *intel = intel_context(ctx);
- GLuint i;
-
- intelFinish(&intel->ctx);
- LOCK_HARDWARE(intel);
-
-#if 0
- /* Just map the framebuffer and all textures. Bufmgr code will
- * take care of waiting on the necessary fences:
- */
- intel->pipe->region_map(intel->intelScreen, intel->front_region);
- intel->pipe->region_map(intel->intelScreen, intel->back_region);
- intel->pipe->region_map(intel->intelScreen, intel->intelScreen->depth_region);
-#endif
-
- for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled) {
- struct gl_texture_object *texObj = ctx->Texture.Unit[i]._Current;
- intel_tex_map_images(intel, intel_texture_object(texObj));
- }
- }
-
- intel_map_unmap_buffers(intel, GL_TRUE);
-}
-
-/**
- * Called when done softare rendering. Unmap the buffers we mapped in
- * the above function.
- */
-void
-intelSpanRenderFinish(GLcontext * ctx)
-{
- struct intel_context *intel = intel_context(ctx);
- GLuint i;
-
- _swrast_flush(ctx);
-
- /* Now unmap the framebuffer:
- */
-#if 0
- intel->pipe->region_unmap(intel, intel->front_region);
- intel->pipe->region_unmap(intel, intel->back_region);
- intel->pipe->region_unmap(intel, intel->intelScreen->depth_region);
-#endif
-
- for (i = 0; i < ctx->Const.MaxTextureCoordUnits; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled) {
- struct gl_texture_object *texObj = ctx->Texture.Unit[i]._Current;
- intel_tex_unmap_images(intel, intel_texture_object(texObj));
- }
- }
-
- intel_map_unmap_buffers(intel, GL_FALSE);
-
- UNLOCK_HARDWARE(intel);
-}
-
-
-void
-intelInitSpanFuncs(GLcontext * ctx)
-{
- struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference(ctx);
- swdd->SpanRenderStart = intelSpanRenderStart;
- swdd->SpanRenderFinish = intelSpanRenderFinish;
-}
-
-
-/**
- * Plug in appropriate span read/write functions for the given renderbuffer.
- * These are used for the software fallbacks.
- */
-void
-intel_set_span_functions(struct gl_renderbuffer *rb)
-{
- if (rb->_ActualFormat == GL_RGB5) {
- /* 565 RGB */
- intelInitPointers_RGB565(rb);
- }
- else if (rb->_ActualFormat == GL_RGBA8) {
- /* 8888 RGBA */
- intelInitPointers_ARGB8888(rb);
- }
- else if (rb->_ActualFormat == GL_DEPTH_COMPONENT16) {
- intelInitDepthPointers_z16(rb);
- }
- else if (rb->_ActualFormat == GL_DEPTH_COMPONENT24 || /* XXX FBO remove */
- rb->_ActualFormat == GL_DEPTH24_STENCIL8_EXT) {
- intelInitDepthPointers_z24_s8(rb);
- }
- else if (rb->_ActualFormat == GL_STENCIL_INDEX8_EXT) { /* XXX FBO remove */
- intelInitStencilPointers_z24_s8(rb);
- }
- else {
- _mesa_problem(NULL,
- "Unexpected _ActualFormat in intelSetSpanFunctions");
- }
-}
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