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Diffstat (limited to 'src/mesa/drivers/dri/tdfx/tdfx_pixels.c')
-rw-r--r--src/mesa/drivers/dri/tdfx/tdfx_pixels.c686
1 files changed, 0 insertions, 686 deletions
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_pixels.c b/src/mesa/drivers/dri/tdfx/tdfx_pixels.c
deleted file mode 100644
index bbbd0d5740f..00000000000
--- a/src/mesa/drivers/dri/tdfx/tdfx_pixels.c
+++ /dev/null
@@ -1,686 +0,0 @@
-/* -*- mode: c; c-basic-offset: 3 -*-
- *
- * Copyright 2000 VA Linux Systems Inc., Fremont, California.
- *
- * 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 (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
- * VA LINUX SYSTEMS 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.
- */
-
-/*
- * Original rewrite:
- * Gareth Hughes <gareth@valinux.com>, 29 Sep - 1 Oct 2000
- *
- * Authors:
- * Gareth Hughes <gareth@valinux.com>
- * Brian Paul <brianp@valinux.com>
- * Nathan Hand <nhand@valinux.com>
- *
- */
-
-#include "tdfx_context.h"
-#include "tdfx_dd.h"
-#include "tdfx_lock.h"
-#include "tdfx_pixels.h"
-#include "tdfx_render.h"
-
-#include "swrast/swrast.h"
-
-#include "main/image.h"
-
-
-#define FX_grLfbWriteRegion(fxMesa,dst_buffer,dst_x,dst_y,src_format,src_width,src_height,src_stride,src_data) \
- do { \
- LOCK_HARDWARE(fxMesa); \
- fxMesa->Glide.grLfbWriteRegion(dst_buffer,dst_x,dst_y,src_format,src_width,src_height,FXFALSE,src_stride,src_data); \
- UNLOCK_HARDWARE(fxMesa); \
- } while(0)
-
-
-#define FX_grLfbReadRegion(fxMesa,src_buffer,src_x,src_y,src_width,src_height,dst_stride,dst_data) \
- do { \
- LOCK_HARDWARE(fxMesa); \
- fxMesa->Glide.grLfbReadRegion(src_buffer,src_x,src_y,src_width,src_height,dst_stride,dst_data); \
- UNLOCK_HARDWARE(fxMesa); \
- } while (0);
-
-
-#if 0
-static FxBool
-FX_grLfbLock(tdfxContextPtr fxMesa, GrLock_t type, GrBuffer_t buffer,
- GrLfbWriteMode_t writeMode, GrOriginLocation_t origin,
- FxBool pixelPipeline, GrLfbInfo_t * info)
-{
- FxBool result;
-
- LOCK_HARDWARE(fxMesa);
- result = fxMesa->Glide.grLfbLock(type, buffer, writeMode, origin, pixelPipeline, info);
- UNLOCK_HARDWARE(fxMesa);
- return result;
-}
-#endif
-
-
-#define FX_grLfbUnlock(fxMesa, t, b) \
- do { \
- LOCK_HARDWARE(fxMesa); \
- fxMesa->Glide.grLfbUnlock(t, b); \
- UNLOCK_HARDWARE(fxMesa); \
- } while (0)
-
-
-
-#if 0
-/* test if window coord (px,py) is visible */
-static GLboolean
-inClipRects(tdfxContextPtr fxMesa, int px, int py)
-{
- int i;
- for (i = 0; i < fxMesa->numClipRects; i++) {
- if ((px >= fxMesa->pClipRects[i].x1) &&
- (px < fxMesa->pClipRects[i].x2) &&
- (py >= fxMesa->pClipRects[i].y1) &&
- (py < fxMesa->pClipRects[i].y2)) return GL_TRUE;
- }
- return GL_FALSE;
-}
-#endif
-
-/* test if rectangle of pixels (px,py) (px+width,py+height) is visible */
-static GLboolean
-inClipRects_Region(tdfxContextPtr fxMesa, int x, int y, int width, int height)
-{
- int i;
- int x1, y1, x2, y2;
- int xmin, xmax, ymin, ymax, pixelsleft;
-
- y1 = y - height + 1; y2 = y;
- x1 = x; x2 = x + width - 1;
- pixelsleft = width * height;
-
- for (i = 0; i < fxMesa->numClipRects; i++)
- {
- /* algorithm requires x1 < x2 and y1 < y2 */
- if ((fxMesa->pClipRects[i].x1 < fxMesa->pClipRects[i].x2)) {
- xmin = fxMesa->pClipRects[i].x1;
- xmax = fxMesa->pClipRects[i].x2-1;
- } else {
- xmin = fxMesa->pClipRects[i].x2;
- xmax = fxMesa->pClipRects[i].x1-1;
- }
- if ((fxMesa->pClipRects[i].y1 < fxMesa->pClipRects[i].y2)) {
- ymin = fxMesa->pClipRects[i].y1;
- ymax = fxMesa->pClipRects[i].y2-1;
- } else {
- ymin = fxMesa->pClipRects[i].y2;
- ymax = fxMesa->pClipRects[i].y1-1;
- }
-
- /* reject trivial cases */
- if (xmax < x1) continue;
- if (ymax < y1) continue;
- if (xmin > x2) continue;
- if (ymin > y2) continue;
-
- /* find the intersection */
- if (xmin < x1) xmin = x1;
- if (ymin < y1) ymin = y1;
- if (xmax > x2) xmax = x2;
- if (ymax > y2) ymax = y2;
-
- pixelsleft -= (xmax-xmin+1) * (ymax-ymin+1);
- }
-
- return pixelsleft == 0;
-}
-
-#if 0
-GLboolean
-tdfx_bitmap_R5G6B5(struct gl_context * ctx, GLint px, GLint py,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte * bitmap)
-{
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GrLfbInfo_t info;
- TdfxU16 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 (ctx->RasterMask & (ALPHATEST_BIT |
- BLEND_BIT |
- DEPTH_BIT |
- FOG_BIT |
- LOGIC_OP_BIT |
- SCISSOR_BIT |
- STENCIL_BIT |
- MASKING_BIT |
- MULTI_DRAW_BIT)) return GL_FALSE;
-
- 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 GL_TRUE; /* totally scissored away */
- }
- else {
- finalUnpack = unpack;
- }
-
- /* compute pixel value */
- {
- GLint r = (GLint) (ctx->Current.RasterColor[0] * 255.0f);
- GLint g = (GLint) (ctx->Current.RasterColor[1] * 255.0f);
- GLint b = (GLint) (ctx->Current.RasterColor[2] * 255.0f);
- /*GLint a = (GLint)(ctx->Current.RasterColor[3]*255.0f); */
- if (fxMesa->bgrOrder) {
- color = (TdfxU16)
- (((TdfxU16) 0xf8 & b) << (11 - 3)) |
- (((TdfxU16) 0xfc & g) << (5 - 3 + 1)) |
- (((TdfxU16) 0xf8 & r) >> 3);
- }
- else
- color = (TdfxU16)
- (((TdfxU16) 0xf8 & r) << (11 - 3)) |
- (((TdfxU16) 0xfc & g) << (5 - 3 + 1)) |
- (((TdfxU16) 0xf8 & b) >> 3);
- }
-
- info.size = sizeof(info);
- if (!TDFX_grLfbLock(fxMesa,
- GR_LFB_WRITE_ONLY,
- fxMesa->currentFB,
- GR_LFBWRITEMODE_565,
- GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
-#ifndef TDFX_SILENT
- fprintf(stderr, "tdfx Driver: error locking the linear frame buffer\n");
-#endif
- return GL_TRUE;
- }
-
- {
- const GLint winX = fxMesa->x_offset;
- const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
- /* 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 = (fxMesa->glCtx->Color.DrawBuffer[0] == GL_FRONT)
- ? (fxMesa->screen_width) : (info.strideInBytes / 2);
- 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) {
- if (inClipRects(fxMesa, winX + px + col, winY - py - row))
- 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) {
- if (inClipRects(fxMesa, winX + px + col, winY - py - row))
- dst[col] = color;
- }
- if (mask == 1U) {
- src++;
- mask = 128U;
- }
- else {
- mask = mask >> 1;
- }
- }
- if (mask != 128)
- src++;
- }
- dst -= dstStride;
- }
- }
-
- TDFX_grLfbUnlock(fxMesa, GR_LFB_WRITE_ONLY, fxMesa->currentFB);
- return GL_TRUE;
-}
-#endif
-
-#if 0
-GLboolean
-tdfx_bitmap_R8G8B8A8(struct gl_context * ctx, GLint px, GLint py,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte * bitmap)
-{
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GrLfbInfo_t info;
- GLuint 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 (ctx->RasterMask & (ALPHATEST_BIT |
- BLEND_BIT |
- DEPTH_BIT |
- FOG_BIT |
- LOGIC_OP_BIT |
- SCISSOR_BIT |
- STENCIL_BIT |
- MASKING_BIT |
- MULTI_DRAW_BIT)) return GL_FALSE;
-
- 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 GL_TRUE; /* totally scissored away */
- }
- else {
- finalUnpack = unpack;
- }
-
- /* compute pixel value */
- {
- GLint r = (GLint) (ctx->Current.RasterColor[0] * 255.0f);
- GLint g = (GLint) (ctx->Current.RasterColor[1] * 255.0f);
- GLint b = (GLint) (ctx->Current.RasterColor[2] * 255.0f);
- GLint a = (GLint) (ctx->Current.RasterColor[3] * 255.0f);
- color = PACK_BGRA32(r, g, b, a);
- }
-
- info.size = sizeof(info);
- if (!TDFX_grLfbLock(fxMesa, GR_LFB_WRITE_ONLY,
- fxMesa->currentFB, GR_LFBWRITEMODE_8888,
- GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
-#ifndef TDFX_SILENT
- fprintf(stderr, "tdfx Driver: error locking the linear frame buffer\n");
-#endif
- return GL_TRUE;
- }
-
- {
- const GLint winX = fxMesa->x_offset;
- const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
- GLint dstStride;
- GLuint *dst;
- GLint row;
-
- if (fxMesa->glCtx->Color.DrawBuffer[0] == GL_FRONT) {
- dstStride = fxMesa->screen_width;
- dst =
- (GLuint *) info.lfbPtr + (winY - py) * dstStride + (winX +
- px);
- }
- else {
- dstStride = info.strideInBytes / 4;
- dst =
- (GLuint *) info.lfbPtr + (winY - py) * dstStride + (winX +
- px);
- }
-
- /* compute dest address of bottom-left pixel in bitmap */
- 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) {
- if (inClipRects(fxMesa, winX + px + col, winY - py - row))
- 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) {
- if (inClipRects(fxMesa, winX + px + col, winY - py - row))
- dst[col] = color;
- }
- if (mask == 1U) {
- src++;
- mask = 128U;
- }
- else {
- mask = mask >> 1;
- }
- }
- if (mask != 128)
- src++;
- }
- dst -= dstStride;
- }
- }
-
- TDFX_grLfbUnlock(fxMesa, GR_LFB_WRITE_ONLY, fxMesa->currentFB);
- return GL_TRUE;
-}
-#endif
-
-void
-tdfx_readpixels_R5G6B5(struct gl_context * ctx, GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *packing,
- GLvoid * dstImage)
-{
- if (format != GL_RGB ||
- type != GL_UNSIGNED_SHORT_5_6_5 ||
- (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT|
- IMAGE_MAP_COLOR_BIT)))
- {
- _swrast_ReadPixels( ctx, x, y, width, height, format, type, packing,
- dstImage );
- return;
- }
-
- {
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GrLfbInfo_t info;
- __DRIdrawable *const readable = fxMesa->driReadable;
- const GLint winX = readable->x;
- const GLint winY = readable->y + readable->h - 1;
- const GLint scrX = winX + x;
- const GLint scrY = winY - y;
-
- LOCK_HARDWARE( fxMesa );
- info.size = sizeof(info);
- if (fxMesa->Glide.grLfbLock(GR_LFB_READ_ONLY,
- fxMesa->ReadBuffer,
- GR_LFBWRITEMODE_ANY,
- GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
- const GLint srcStride = (fxMesa->glCtx->Color.DrawBuffer[0] ==
- GL_FRONT) ? (fxMesa->screen_width) : (info.strideInBytes / 2);
- const GLushort *src = (const GLushort *) info.lfbPtr
- + scrY * srcStride + scrX;
- GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing,
- dstImage, width, height, format, type, 0, 0);
- const GLint dstStride = _mesa_image_row_stride(packing,
- width, format, type);
-
- /* 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;
- }
-
- fxMesa->Glide.grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->ReadBuffer);
- }
- UNLOCK_HARDWARE( fxMesa );
- return;
- }
-}
-
-void
-tdfx_readpixels_R8G8B8A8(struct gl_context * ctx, GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *packing,
- GLvoid * dstImage)
-{
- if ((!(format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8) &&
- !(format == GL_BGRA && type == GL_UNSIGNED_BYTE)) ||
- (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT|
- IMAGE_MAP_COLOR_BIT)))
- {
- _swrast_ReadPixels( ctx, x, y, width, height, format, type, packing,
- dstImage );
- return;
- }
-
-
- {
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GrLfbInfo_t info;
- __DRIdrawable *const readable = fxMesa->driReadable;
- const GLint winX = readable->x;
- const GLint winY = readable->y + readable->h - 1;
- const GLint scrX = winX + x;
- const GLint scrY = winY - y;
-
- LOCK_HARDWARE(fxMesa);
- info.size = sizeof(info);
- if (fxMesa->Glide.grLfbLock(GR_LFB_READ_ONLY,
- fxMesa->ReadBuffer,
- GR_LFBWRITEMODE_ANY,
- GR_ORIGIN_UPPER_LEFT, FXFALSE, &info))
- {
- const GLint srcStride = (fxMesa->glCtx->Color.DrawBuffer[0] == GL_FRONT)
- ? (fxMesa->screen_width) : (info.strideInBytes / 4);
- const GLuint *src = (const GLuint *) info.lfbPtr
- + scrY * srcStride + scrX;
- const GLint dstStride =
- _mesa_image_row_stride(packing, width, format, type);
- GLubyte *dst = (GLubyte *) _mesa_image_address2d(packing,
- dstImage, width, height, format, type, 0, 0);
- const GLint widthInBytes = width * 4;
-
- {
- GLint row;
- for (row = 0; row < height; row++) {
- memcpy(dst, src, widthInBytes);
- dst += dstStride;
- src -= srcStride;
- }
- }
-
- fxMesa->Glide.grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->ReadBuffer);
- }
- UNLOCK_HARDWARE(fxMesa);
- }
-}
-
-void
-tdfx_drawpixels_R8G8B8A8(struct gl_context * ctx, GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid * pixels)
-{
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
-
- if ((!(format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8) &&
- !(format == GL_BGRA && type == GL_UNSIGNED_BYTE)) ||
- ctx->Pixel.ZoomX != 1.0F ||
- ctx->Pixel.ZoomY != 1.0F ||
- (ctx->_ImageTransferState & (IMAGE_SCALE_BIAS_BIT|
- IMAGE_MAP_COLOR_BIT)) ||
- ctx->Color.AlphaEnabled ||
- ctx->Depth.Test ||
- ctx->Fog.Enabled ||
- ctx->Scissor.Enabled ||
- ctx->Stencil._Enabled ||
- !ctx->Color.ColorMask[0][0] ||
- !ctx->Color.ColorMask[0][1] ||
- !ctx->Color.ColorMask[0][2] ||
- !ctx->Color.ColorMask[0][3] ||
- ctx->Color.ColorLogicOpEnabled ||
- ctx->Texture._EnabledUnits ||
- fxMesa->Fallback)
- {
- _swrast_DrawPixels( ctx, x, y, width, height, format, type,
- unpack, pixels );
- return;
- }
-
- {
- tdfxContextPtr fxMesa = TDFX_CONTEXT(ctx);
- GrLfbInfo_t info;
- GLboolean result = GL_FALSE;
-
- const GLint winX = fxMesa->x_offset;
- const GLint winY = fxMesa->y_offset + fxMesa->height - 1;
- const GLint scrX = winX + x;
- const GLint scrY = winY - y;
-
- /* lock early to make sure cliprects are right */
- LOCK_HARDWARE(fxMesa);
-
- /* make sure hardware has latest blend funcs */
- if (ctx->Color.BlendEnabled) {
- fxMesa->dirty |= TDFX_UPLOAD_BLEND_FUNC;
- tdfxEmitHwStateLocked( fxMesa );
- }
-
- /* look for clipmasks, giveup if region obscured */
- if (fxMesa->glCtx->Color.DrawBuffer[0] == GL_FRONT) {
- if (!inClipRects_Region(fxMesa, scrX, scrY, width, height)) {
- UNLOCK_HARDWARE(fxMesa);
- _swrast_DrawPixels( ctx, x, y, width, height, format, type,
- unpack, pixels );
- return;
- }
- }
-
- info.size = sizeof(info);
- if (fxMesa->Glide.grLfbLock(GR_LFB_WRITE_ONLY,
- fxMesa->DrawBuffer,
- GR_LFBWRITEMODE_8888,
- GR_ORIGIN_UPPER_LEFT, FXTRUE, &info))
- {
- const GLint dstStride = (fxMesa->glCtx->Color.DrawBuffer[0] == GL_FRONT)
- ? (fxMesa->screen_width * 4) : (info.strideInBytes);
- GLubyte *dst = (GLubyte *) info.lfbPtr
- + scrY * dstStride + scrX * 4;
- const GLint srcStride =
- _mesa_image_row_stride(unpack, width, format, type);
- const GLubyte *src = (GLubyte *) _mesa_image_address2d(unpack,
- pixels, width, height, format, type, 0, 0);
- const GLint widthInBytes = width * 4;
-
- if ((format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8) ||
- (format == GL_BGRA && type == GL_UNSIGNED_BYTE)) {
- GLint row;
- for (row = 0; row < height; row++) {
- memcpy(dst, src, widthInBytes);
- dst -= dstStride;
- src += srcStride;
- }
- result = GL_TRUE;
- }
-
- fxMesa->Glide.grLfbUnlock(GR_LFB_WRITE_ONLY, fxMesa->DrawBuffer);
- }
- UNLOCK_HARDWARE(fxMesa);
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-03 23:23:09 +0000