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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/glide/fxdd.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/glide/fxdd.c2197
1 files changed, 0 insertions, 2197 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxdd.c b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxdd.c
deleted file mode 100644
index 4e9df208b..000000000
--- a/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxdd.c
+++ /dev/null
@@ -1,2197 +0,0 @@
-/*
- * 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 "array_cache/acache.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;
- }
-}
-
-
-static void
-fxDDViewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
-{
- /* poll for window size change and realloc software Z/stencil/etc if needed */
- _mesa_ResizeBuffersMESA();
-}
-
-
-/* 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, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
-{
- 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( %d, %d, %d, %d )\n",
- (int) x, (int) y, (int) width, (int) height );
- }
-
- /* 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, all, x, y, width, height );
-}
-
-
-/* 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_arb_vertex_program_stage,
- &_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);
- _ac_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);
- _ac_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->_ColorDrawBufferMask[0] != BUFFER_BIT_FRONT_LEFT &&
- ctx->DrawBuffer->_ColorDrawBufferMask[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);
- _ac_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.StencilFunc = fxDDStencilFunc;
- ctx->Driver.StencilMask = fxDDStencilMask;
- ctx->Driver.StencilOp = fxDDStencilOp;
- }
-
- 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 */