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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddspan.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddspan.c663
1 files changed, 663 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddspan.c b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddspan.c
new file mode 100644
index 000000000..79abbefc2
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/glide/fxddspan.c
@@ -0,0 +1,663 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 4.0
+ *
+ * Copyright (C) 1999-2001 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 span and pixel functions */
+
+
+#ifdef HAVE_CONFIG_H
+#include "conf.h"
+#endif
+
+#if defined(FX)
+
+#include "fxdrv.h"
+#include "fxglidew.h"
+#include "swrast/swrast.h"
+
+
+/************************************************************************/
+/***** Span functions *****/
+/************************************************************************/
+
+#define DBG 0
+
+
+#define LOCAL_VARS \
+ GLuint pitch = info.strideInBytes; \
+ GLuint height = fxMesa->height; \
+ char *buf = (char *)((char *)info.lfbPtr + 0 /* x, y offset */); \
+ GLuint p; \
+ (void) buf; (void) p;
+
+#define CLIPPIXEL( _x, _y ) ( _x >= minx && _x < maxx && \
+ _y >= miny && _y < maxy )
+
+#define CLIPSPAN( _x, _y, _n, _x1, _n1, _i ) \
+ if ( _y < miny || _y >= maxy ) { \
+ _n1 = 0, _x1 = x; \
+ } else { \
+ _n1 = _n; \
+ _x1 = _x; \
+ if ( _x1 < minx ) _i += (minx-_x1), n1 -= (minx-_x1), _x1 = minx;\
+ if ( _x1 + _n1 >= maxx ) n1 -= (_x1 + n1 - maxx); \
+ }
+
+#define Y_FLIP(_y) (height - _y - 1)
+
+#define HW_WRITE_LOCK() \
+ fxMesaContext fxMesa = FX_CONTEXT(ctx); \
+ GrLfbInfo_t info; \
+ info.size = sizeof(GrLfbInfo_t); \
+ if ( grLfbLock( GR_LFB_WRITE_ONLY, \
+ fxMesa->currentFB, LFB_MODE, \
+ GR_ORIGIN_UPPER_LEFT, FXFALSE, &info ) ) {
+
+#define HW_WRITE_UNLOCK() \
+ grLfbUnlock( GR_LFB_WRITE_ONLY, fxMesa->currentFB ); \
+ }
+
+#define HW_READ_LOCK() \
+ fxMesaContext fxMesa = FX_CONTEXT(ctx); \
+ GrLfbInfo_t info; \
+ info.size = sizeof(GrLfbInfo_t); \
+ if ( grLfbLock( GR_LFB_READ_ONLY, fxMesa->currentFB, \
+ LFB_MODE, GR_ORIGIN_UPPER_LEFT, FXFALSE, &info ) ) {
+
+#define HW_READ_UNLOCK() \
+ grLfbUnlock( GR_LFB_READ_ONLY, fxMesa->currentFB ); \
+ }
+
+#define HW_WRITE_CLIPLOOP() \
+ do { \
+ /* remember, we need to flip the scissor, too */ \
+ /* is it better to do it inside fxDDScissor? */ \
+ const int minx = fxMesa->clipMinX; \
+ const int maxy = Y_FLIP(fxMesa->clipMinY); \
+ const int maxx = fxMesa->clipMaxX; \
+ const int miny = Y_FLIP(fxMesa->clipMaxY);
+
+#define HW_READ_CLIPLOOP() \
+ do { \
+ /* remember, we need to flip the scissor, too */ \
+ /* is it better to do it inside fxDDScissor? */ \
+ const int minx = fxMesa->clipMinX; \
+ const int maxy = Y_FLIP(fxMesa->clipMinY); \
+ const int maxx = fxMesa->clipMaxX; \
+ const int miny = Y_FLIP(fxMesa->clipMaxY);
+
+#define HW_ENDCLIPLOOP() \
+ } while (0)
+
+
+/* 16 bit, ARGB1555 color spanline and pixel functions */
+
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_1555
+
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 2
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color) \
+ p = TDFXPACKCOLOR1555( color[RCOMP], color[GCOMP], color[BCOMP], color[ACOMP] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch) = \
+ TDFXPACKCOLOR1555( r, g, b, a )
+
+#define WRITE_PIXEL( _x, _y, p ) \
+ *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch) = p
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch); \
+ rgba[0] = FX_rgb_scale_5[(p >> 10) & 0x1F]; \
+ rgba[1] = FX_rgb_scale_5[(p >> 5) & 0x1F]; \
+ rgba[2] = FX_rgb_scale_5[ p & 0x1F]; \
+ rgba[3] = (p & 0x8000) ? 255 : 0; \
+ } while (0)
+
+#define TAG(x) tdfx##x##_ARGB1555
+#include "../dri/common/spantmp.h"
+
+
+/* 16 bit, RGB565 color spanline and pixel functions */
+/* [dBorca] Hack alert:
+ * This is wrong. The alpha value is lost, even when we provide
+ * HW alpha (565 w/o depth buffering). To really update alpha buffer,
+ * we would need to do the 565 writings via 8888 colorformat and rely
+ * on the Voodoo to perform color scaling. In which case our 565 span
+ * would look nicer! But this violates FSAA rules...
+ */
+
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_565
+
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 2
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color) \
+ p = TDFXPACKCOLOR565( color[RCOMP], color[GCOMP], color[BCOMP] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch) = \
+ TDFXPACKCOLOR565( r, g, b )
+
+#define WRITE_PIXEL( _x, _y, p ) \
+ *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch) = p
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLushort p = *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch); \
+ rgba[0] = FX_rgb_scale_5[(p >> 11) & 0x1F]; \
+ rgba[1] = FX_rgb_scale_6[(p >> 5) & 0x3F]; \
+ rgba[2] = FX_rgb_scale_5[ p & 0x1F]; \
+ rgba[3] = 0xff; \
+ } while (0)
+
+#define TAG(x) tdfx##x##_RGB565
+#include "../dri/common/spantmp.h"
+
+
+/* 32 bit, ARGB8888 color spanline and pixel functions */
+
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_8888
+
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 4
+
+#undef INIT_MONO_PIXEL
+#define INIT_MONO_PIXEL(p, color) \
+ p = TDFXPACKCOLOR8888( color[RCOMP], color[GCOMP], color[BCOMP], color[ACOMP] )
+
+#define WRITE_RGBA( _x, _y, r, g, b, a ) \
+ *(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch) = \
+ TDFXPACKCOLOR8888( r, g, b, a )
+
+#define WRITE_PIXEL( _x, _y, p ) \
+ *(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch) = p
+
+#define READ_RGBA( rgba, _x, _y ) \
+ do { \
+ GLuint p = *(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch); \
+ rgba[0] = (p >> 16) & 0xff; \
+ rgba[1] = (p >> 8) & 0xff; \
+ rgba[2] = (p >> 0) & 0xff; \
+ rgba[3] = (p >> 24) & 0xff; \
+ } while (0)
+
+#define TAG(x) tdfx##x##_ARGB8888
+#include "../dri/common/spantmp.h"
+
+
+/************************************************************************/
+/***** Depth functions *****/
+/************************************************************************/
+
+#define DBG 0
+
+#undef HW_WRITE_LOCK
+#undef HW_WRITE_UNLOCK
+#undef HW_READ_LOCK
+#undef HW_READ_UNLOCK
+
+#define HW_CLIPLOOP HW_WRITE_CLIPLOOP
+
+#define LOCAL_DEPTH_VARS \
+ GLuint pitch = info.strideInBytes; \
+ GLuint height = fxMesa->height; \
+ char *buf = (char *)((char *)info.lfbPtr + 0 /* x, y offset */); \
+ (void) buf;
+
+#define HW_WRITE_LOCK() \
+ fxMesaContext fxMesa = FX_CONTEXT(ctx); \
+ GrLfbInfo_t info; \
+ info.size = sizeof(GrLfbInfo_t); \
+ if ( grLfbLock( GR_LFB_WRITE_ONLY, \
+ GR_BUFFER_AUXBUFFER, LFB_MODE, \
+ GR_ORIGIN_UPPER_LEFT, FXFALSE, &info ) ) {
+
+#define HW_WRITE_UNLOCK() \
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_AUXBUFFER); \
+ }
+
+#define HW_READ_LOCK() \
+ fxMesaContext fxMesa = FX_CONTEXT(ctx); \
+ GrLfbInfo_t info; \
+ info.size = sizeof(GrLfbInfo_t); \
+ if ( grLfbLock( GR_LFB_READ_ONLY, GR_BUFFER_AUXBUFFER, \
+ LFB_MODE, GR_ORIGIN_UPPER_LEFT, FXFALSE, &info ) ) {
+
+#define HW_READ_UNLOCK() \
+ grLfbUnlock( GR_LFB_READ_ONLY, GR_BUFFER_AUXBUFFER); \
+ }
+
+
+/* 16 bit, depth spanline and pixel functions */
+
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_ZA16
+
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 2
+
+#define WRITE_DEPTH( _x, _y, d ) \
+ *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch) = d
+
+#define READ_DEPTH( d, _x, _y ) \
+ d = *(GLushort *)(buf + _x*BYTESPERPIXEL + _y*pitch)
+
+#define TAG(x) tdfx##x##_Z16
+#include "../dri/common/depthtmp.h"
+
+
+/* 24 bit, depth spanline and pixel functions (for use w/ stencil) */
+/* [dBorca] Hack alert:
+ * This is evil. The incoming Mesa's 24bit depth value
+ * is shifted left 8 bits, to obtain a full 32bit value,
+ * which will be thrown into the framebuffer. We rely on
+ * the fact that Voodoo hardware transforms a 32bit value
+ * into 24bit value automatically and, MOST IMPORTANT, won't
+ * alter the upper 8bits of the value already existing in the
+ * framebuffer (where stencil resides).
+ */
+
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_Z32
+
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 4
+
+#define WRITE_DEPTH( _x, _y, d ) \
+ *(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch) = d << 8
+
+#define READ_DEPTH( d, _x, _y ) \
+ d = (*(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch)) & 0xffffff
+
+#define TAG(x) tdfx##x##_Z24
+#include "../dri/common/depthtmp.h"
+
+
+/* 32 bit, depth spanline and pixel functions (for use w/o stencil) */
+/* [dBorca] Hack alert:
+ * This is more evil. We make Mesa run in 32bit depth, but
+ * tha Voodoo HW can only handle 24bit depth. Well, exploiting
+ * the pixel pipeline, we can achieve 24:8 format for greater
+ * precision...
+ * If anyone tells me how to really store 32bit values into the
+ * depth buffer, I'll write the *_Z32 routines. Howver, bear in
+ * mind that means running without stencil!
+ */
+
+/************************************************************************/
+/***** Span functions (optimized) *****/
+/************************************************************************/
+
+/*
+ * Read a span of 15-bit RGB pixels. Note, we don't worry about cliprects
+ * since OpenGL says obscured pixels have undefined values.
+ */
+static void fxReadRGBASpan_ARGB1555 (const GLcontext * ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GrLfbInfo_t info;
+ info.size = sizeof(GrLfbInfo_t);
+ 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 GLushort *data16 = (const GLushort *)((const GLubyte *)info.lfbPtr +
+ (winY - y) * info.strideInBytes +
+ (winX + x) * 2);
+ const GLuint *data32 = (const GLuint *) data16;
+ GLuint i, j;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+
+ for (i = j = 0; i < n; i += 2, j++) {
+ GLuint pixel = data32[j];
+ rgba[i][0] = FX_rgb_scale_5[(pixel >> 10) & 0x1F];
+ rgba[i][1] = FX_rgb_scale_5[(pixel >> 5) & 0x1F];
+ rgba[i][2] = FX_rgb_scale_5[ pixel & 0x1F];
+ rgba[i][3] = (pixel & 0x8000) ? 255 : 0;
+ rgba[i+1][0] = FX_rgb_scale_5[(pixel >> 26) & 0x1F];
+ rgba[i+1][1] = FX_rgb_scale_5[(pixel >> 21) & 0x1F];
+ rgba[i+1][2] = FX_rgb_scale_5[(pixel >> 16) & 0x1F];
+ rgba[i+1][3] = (pixel & 0x80000000) ? 255 : 0;
+ }
+ if (extraPixel) {
+ GLushort pixel = data16[n];
+ rgba[n][0] = FX_rgb_scale_5[(pixel >> 10) & 0x1F];
+ rgba[n][1] = FX_rgb_scale_5[(pixel >> 5) & 0x1F];
+ rgba[n][2] = FX_rgb_scale_5[ pixel & 0x1F];
+ rgba[n][3] = (pixel & 0x8000) ? 255 : 0;
+ }
+
+ grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
+ }
+}
+
+/*
+ * Read a span of 16-bit RGB pixels. Note, we don't worry about cliprects
+ * since OpenGL says obscured pixels have undefined values.
+ */
+static void fxReadRGBASpan_RGB565 (const GLcontext * ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GrLfbInfo_t info;
+ info.size = sizeof(GrLfbInfo_t);
+ 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 GLushort *data16 = (const GLushort *)((const GLubyte *)info.lfbPtr +
+ (winY - y) * info.strideInBytes +
+ (winX + x) * 2);
+ const GLuint *data32 = (const GLuint *) data16;
+ GLuint i, j;
+ GLuint extraPixel = (n & 1);
+ n -= extraPixel;
+
+ for (i = j = 0; i < n; i += 2, j++) {
+ GLuint pixel = data32[j];
+ rgba[i][0] = FX_rgb_scale_5[(pixel >> 11) & 0x1F];
+ rgba[i][1] = FX_rgb_scale_6[(pixel >> 5) & 0x3F];
+ rgba[i][2] = FX_rgb_scale_5[ pixel & 0x1F];
+ rgba[i][3] = 255;
+ rgba[i+1][0] = FX_rgb_scale_5[(pixel >> 27) & 0x1F];
+ rgba[i+1][1] = FX_rgb_scale_6[(pixel >> 21) & 0x3F];
+ rgba[i+1][2] = FX_rgb_scale_5[(pixel >> 16) & 0x1F];
+ rgba[i+1][3] = 255;
+ }
+ if (extraPixel) {
+ GLushort pixel = data16[n];
+ rgba[n][0] = FX_rgb_scale_5[(pixel >> 11) & 0x1F];
+ rgba[n][1] = FX_rgb_scale_6[(pixel >> 5) & 0x3F];
+ rgba[n][2] = FX_rgb_scale_5[ pixel & 0x1F];
+ rgba[n][3] = 255;
+ }
+
+ grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
+ }
+}
+
+/*
+ * Read a span of 32-bit RGB pixels. Note, we don't worry about cliprects
+ * since OpenGL says obscured pixels have undefined values.
+ */
+static void fxReadRGBASpan_ARGB8888 (const GLcontext * ctx,
+ struct gl_renderbuffer *rb,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GLuint i;
+ grLfbReadRegion(fxMesa->currentFB, x, fxMesa->height - 1 - y, n, 1, n * 4, rgba);
+ for (i = 0; i < n; i++) {
+ GLubyte c = rgba[i][0];
+ rgba[i][0] = rgba[i][2];
+ rgba[i][2] = c;
+ }
+}
+
+
+/************************************************************************/
+/***** Depth functions (optimized) *****/
+/************************************************************************/
+
+static void
+fxReadDepthSpan_Z16(GLcontext * ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, GLdepth depth[])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GLint bottom = fxMesa->height - 1;
+ GLushort depth16[MAX_WIDTH];
+ GLuint i;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxReadDepthSpan_Z16(...)\n");
+ }
+
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth16);
+ for (i = 0; i < n; i++) {
+ depth[i] = depth16[i];
+ }
+}
+
+
+static void
+fxReadDepthSpan_Z24(GLcontext * ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, GLdepth depth[])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GLint bottom = fxMesa->height - 1;
+ GLuint i;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxReadDepthSpan_Z24(...)\n");
+ }
+
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth);
+ for (i = 0; i < n; i++) {
+ depth[i] &= 0xffffff;
+ }
+}
+
+
+/************************************************************************/
+/***** Stencil functions (optimized) *****/
+/************************************************************************/
+
+static void
+fxWriteStencilSpan (GLcontext *ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y,
+ const GLstencil stencil[], const GLubyte mask[])
+{
+ /*
+ * XXX todo
+ */
+}
+
+static void
+fxReadStencilSpan(GLcontext * ctx, struct gl_renderbuffer *rb,
+ GLuint n, GLint x, GLint y, GLstencil stencil[])
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ GLint bottom = fxMesa->height - 1;
+ GLuint zs32[MAX_WIDTH];
+ GLuint i;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxReadStencilSpan(...)\n");
+ }
+
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, zs32);
+ for (i = 0; i < n; i++) {
+ stencil[i] = zs32[i] >> 24;
+ }
+}
+
+static void
+fxWriteStencilPixels (GLcontext *ctx, struct gl_renderbuffer *rb, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLstencil stencil[],
+ const GLubyte mask[])
+{
+ /*
+ * XXX todo
+ */
+}
+
+static void
+fxReadStencilPixels (GLcontext *ctx, struct gl_renderbuffer *rb, GLuint n,
+ const GLint x[], const GLint y[],
+ GLstencil stencil[])
+{
+ /*
+ * XXX todo
+ */
+}
+
+
+
+/*
+ * This function is called to specify which buffer to read and write
+ * for software rasterization (swrast) fallbacks. This doesn't necessarily
+ * correspond to glDrawBuffer() or glReadBuffer() calls.
+ */
+static void
+fxDDSetBuffer(GLcontext * ctx, GLframebuffer * buffer, GLuint bufferBit)
+{
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+ (void) buffer;
+
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "fxDDSetBuffer(%x)\n", (int)bufferBit);
+ }
+
+ if (bufferBit == BUFFER_BIT_FRONT_LEFT) {
+ fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
+ grRenderBuffer(fxMesa->currentFB);
+ }
+ else if (bufferBit == BUFFER_BIT_BACK_LEFT) {
+ fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
+ grRenderBuffer(fxMesa->currentFB);
+ }
+}
+
+
+/************************************************************************/
+
+
+
+void
+fxSetupDDSpanPointers(GLcontext * ctx)
+{
+ struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx );
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
+
+ swdd->SetBuffer = fxDDSetBuffer;
+
+ switch (fxMesa->colDepth) {
+ case 15:
+ swdd->WriteRGBASpan = tdfxWriteRGBASpan_ARGB1555;
+ swdd->WriteRGBSpan = tdfxWriteRGBSpan_ARGB1555;
+ swdd->WriteRGBAPixels = tdfxWriteRGBAPixels_ARGB1555;
+ swdd->WriteMonoRGBASpan = tdfxWriteMonoRGBASpan_ARGB1555;
+ swdd->WriteMonoRGBAPixels = tdfxWriteMonoRGBAPixels_ARGB1555;
+ swdd->ReadRGBASpan = /*td*/fxReadRGBASpan_ARGB1555;
+ swdd->ReadRGBAPixels = tdfxReadRGBAPixels_ARGB1555;
+
+ swdd->WriteDepthSpan = tdfxWriteDepthSpan_Z16;
+ swdd->WriteDepthPixels = tdfxWriteDepthPixels_Z16;
+ swdd->ReadDepthSpan = /*td*/fxReadDepthSpan_Z16;
+ swdd->ReadDepthPixels = tdfxReadDepthPixels_Z16;
+ break;
+ case 16:
+ swdd->WriteRGBASpan = tdfxWriteRGBASpan_RGB565;
+ swdd->WriteRGBSpan = tdfxWriteRGBSpan_RGB565;
+ swdd->WriteRGBAPixels = tdfxWriteRGBAPixels_RGB565;
+ swdd->WriteMonoRGBASpan = tdfxWriteMonoRGBASpan_RGB565;
+ swdd->WriteMonoRGBAPixels = tdfxWriteMonoRGBAPixels_RGB565;
+ swdd->ReadRGBASpan = /*td*/fxReadRGBASpan_RGB565;
+ swdd->ReadRGBAPixels = tdfxReadRGBAPixels_RGB565;
+
+ swdd->WriteDepthSpan = tdfxWriteDepthSpan_Z16;
+ swdd->WriteDepthPixels = tdfxWriteDepthPixels_Z16;
+ swdd->ReadDepthSpan = /*td*/fxReadDepthSpan_Z16;
+ swdd->ReadDepthPixels = tdfxReadDepthPixels_Z16;
+ break;
+ case 32:
+ swdd->WriteRGBASpan = tdfxWriteRGBASpan_ARGB8888;
+ swdd->WriteRGBSpan = tdfxWriteRGBSpan_ARGB8888;
+ swdd->WriteRGBAPixels = tdfxWriteRGBAPixels_ARGB8888;
+ swdd->WriteMonoRGBASpan = tdfxWriteMonoRGBASpan_ARGB8888;
+ swdd->WriteMonoRGBAPixels = tdfxWriteMonoRGBAPixels_ARGB8888;
+ swdd->ReadRGBASpan = /*td*/fxReadRGBASpan_ARGB8888;
+ swdd->ReadRGBAPixels = tdfxReadRGBAPixels_ARGB8888;
+
+ swdd->WriteDepthSpan = tdfxWriteDepthSpan_Z24;
+ swdd->WriteDepthPixels = tdfxWriteDepthPixels_Z24;
+ swdd->ReadDepthSpan = /*td*/fxReadDepthSpan_Z24;
+ swdd->ReadDepthPixels = tdfxReadDepthPixels_Z24;
+ break;
+ }
+
+ if (fxMesa->haveHwStencil) {
+ swdd->WriteStencilSpan = fxWriteStencilSpan;
+ swdd->ReadStencilSpan = fxReadStencilSpan;
+ swdd->WriteStencilPixels = fxWriteStencilPixels;
+ swdd->ReadStencilPixels = fxReadStencilPixels;
+ }
+#if 0
+ swdd->WriteCI8Span = NULL;
+ swdd->WriteCI32Span = NULL;
+ swdd->WriteMonoCISpan = NULL;
+ swdd->WriteCI32Pixels = NULL;
+ swdd->WriteMonoCIPixels = NULL;
+ swdd->ReadCI32Span = NULL;
+ swdd->ReadCI32Pixels = NULL;
+
+ swdd->SpanRenderStart = tdfxSpanRenderStart; /* BEGIN_BOARD_LOCK */
+ swdd->SpanRenderFinish = tdfxSpanRenderFinish; /* END_BOARD_LOCK */
+#endif
+}
+
+
+#else
+
+
+/*
+ * Need this to provide at least one external definition.
+ */
+
+extern int gl_fx_dummy_function_span(void);
+int
+gl_fx_dummy_function_span(void)
+{
+ return 0;
+}
+
+#endif /* FX */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 22:54:45 +0000