-
/*
* Mesa 3-D graphics library
- * Version: 3.3
+ * Version: 4.0
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * 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"),
* 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.
- *
- *
- * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
- * terms stated above.
- *
- * Thank you for your contribution, David!
- *
- * Please make note of the above copyright/license statement. If you
- * contributed code or bug fixes to this code under the previous (GNU
- * Library) license and object to the new license, your code will be
- * removed at your request. Please see the Mesa docs/COPYRIGHT file
- * for more information.
- *
- * Additional Mesa/3Dfx driver developers:
- * Daryll Strauss <daryll@precisioninsight.com>
- * Keith Whitwell <keith@precisioninsight.com>
- *
- * See fxapi.h for more revision/author details.
+ */
+
+/* Authors:
+ * David Bucciarelli
+ * Brian Paul
+ * Daryll Strauss
+ * Keith Whitwell
+ * Daniel Borca
+ * Hiroshi Morii
*/
#if defined(FX)
#include "fxdrv.h"
+#include "fxglidew.h"
#include "swrast/swrast.h"
-#ifdef _MSC_VER
-#ifdef _WIN32
-#pragma warning( disable : 4090 4022 )
-/* 4101 : "different 'const' qualifier"
- * 4022 : "pointer mistmatch for actual parameter 'n'
+
+/************************************************************************/
+/***** 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 { \
+ int _nc = 1; /* numcliprects */ \
+ /* [dBorca] Hack alert: */ \
+ /* remember, we need to flip the scissor, too */ \
+ /* is it better to do it inside fxDDScissor? */ \
+ while (_nc--) { \
+ 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 { \
+ int _nc = 1; /* numcliprects */ \
+ /* [dBorca] Hack alert: */ \
+ /* remember, we need to flip the scissor, too */ \
+ /* is it better to do it inside fxDDScissor? */ \
+ while (_nc--) { \
+ 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...
*/
-#endif
-#endif
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_565
-#if !defined(FXMESA_USE_ARGB)
+#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 writeRegionClipped(fxm,dst_buffer,dst_x,dst_y,src_format,src_width,src_height,src_stride,src_data) \
- FX_grLfbWriteRegion(dst_buffer,dst_x,dst_y,src_format,src_width,src_height,src_stride,src_data)
+#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"
-/* KW: Rearranged the args in the call to grLfbWriteRegion().
- */
-#define LFB_WRITE_SPAN_MESA(dst_buffer, \
- dst_x, \
- dst_y, \
- src_width, \
- src_stride, \
- src_data) \
- writeRegionClipped(fxMesa, dst_buffer, \
- dst_x, \
- dst_y, \
- GR_LFB_SRC_FMT_8888, \
- src_width, \
- 1, \
- src_stride, \
- src_data) \
-
-
-#else /* !defined(FXMESA_USE_RGBA) */
-
-#define writeRegionClipped(fxm,dst_buffer,dst_x,dst_y,src_format,src_width,src_height,src_stride,src_data) \
- FX_grLfbWriteRegion(dst_buffer,dst_x,dst_y,src_format,src_width,src_height,src_stride,src_data)
-
-
-#define MESACOLOR_TO_ARGB(c) ( \
- ( ((unsigned int)(c[ACOMP]))<<24 ) | \
- ( ((unsigned int)(c[RCOMP]))<<16 ) | \
- ( ((unsigned int)(c[GCOMP]))<<8 ) | \
- ( (unsigned int)(c[BCOMP])) )
-
-inline void
-LFB_WRITE_SPAN_MESA(GrBuffer_t dst_buffer,
- FxU32 dst_x,
- FxU32 dst_y,
- FxU32 src_width, FxI32 src_stride, void *src_data)
-{
- /* Covert to ARGB */
- GLubyte(*rgba)[4] = src_data;
- GLuint argb[MAX_WIDTH];
- int i;
- for (i = 0; i < src_width; i++) {
- argb[i] = MESACOLOR_TO_ARGB(rgba[i]);
- }
- writeRegionClipped( /*fxMesa, */ NULL, dst_buffer,
- dst_x,
- dst_y,
- GR_LFB_SRC_FMT_8888,
- src_width, 1, src_stride, (void *) argb);
-}
+/* 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
-#endif /* !defined(FXMESA_USE_RGBA) */
+#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"
/************************************************************************/
-/***** Span functions *****/
+/***** Depth functions *****/
/************************************************************************/
+#define DBG 0
-static void
-fxDDWriteRGBASpan(const GLcontext * ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte rgba[][4], const GLubyte mask[])
-{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLuint i;
- GLint bottom = fxMesa->height - 1;
+#undef HW_WRITE_LOCK
+#undef HW_WRITE_UNLOCK
+#undef HW_READ_LOCK
+#undef HW_READ_UNLOCK
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteRGBASpan(...)\n");
- }
+#define HW_CLIPLOOP HW_WRITE_CLIPLOOP
- if (mask) {
- int span = 0;
-
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- ++span;
- }
- else {
- if (span > 0) {
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x + i - span,
- bottom - y,
- /* GR_LFB_SRC_FMT_8888, */ span, /*1, */ 0,
- (void *) rgba[i - span]);
- span = 0;
- }
- }
- }
-
- if (span > 0)
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x + n - span, bottom - y,
- /* GR_LFB_SRC_FMT_8888, */ span, /*1, */ 0,
- (void *) rgba[n - span]);
- }
- else
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x, bottom - y, /* GR_LFB_SRC_FMT_8888, */
- n, /* 1, */ 0, (void *) rgba);
-}
+#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 ) ) {
-static void
-fxDDWriteRGBSpan(const GLcontext * ctx,
- GLuint n, GLint x, GLint y,
- const GLubyte rgb[][3], const GLubyte mask[])
-{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLuint i;
- GLint bottom = fxMesa->height - 1;
- GLubyte rgba[MAX_WIDTH][4];
+#define HW_WRITE_UNLOCK() \
+ grLfbUnlock( GR_LFB_WRITE_ONLY, GR_BUFFER_AUXBUFFER); \
+ }
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteRGBSpan()\n");
- }
+#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 ) ) {
- if (mask) {
- int span = 0;
-
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- rgba[span][RCOMP] = rgb[i][0];
- rgba[span][GCOMP] = rgb[i][1];
- rgba[span][BCOMP] = rgb[i][2];
- rgba[span][ACOMP] = 255;
- ++span;
- }
- else {
- if (span > 0) {
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x + i - span,
- bottom - y,
- /*GR_LFB_SRC_FMT_8888, */ span, /* 1, */ 0,
- (void *) rgba);
- span = 0;
- }
- }
- }
-
- if (span > 0)
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x + n - span, bottom - y,
- /*GR_LFB_SRC_FMT_8888, */ span, /* 1, */ 0,
- (void *) rgba);
- }
- else {
- for (i = 0; i < n; i++) {
- rgba[i][RCOMP] = rgb[i][0];
- rgba[i][GCOMP] = rgb[i][1];
- rgba[i][BCOMP] = rgb[i][2];
- rgba[i][ACOMP] = 255;
- }
-
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x, bottom - y, /* GR_LFB_SRC_FMT_8888, */
- n, /* 1, */ 0, (void *) rgba);
- }
-}
+#define HW_READ_UNLOCK() \
+ grLfbUnlock( GR_LFB_READ_ONLY, GR_BUFFER_AUXBUFFER); \
+ }
-static void
-fxDDWriteMonoRGBASpan(const GLcontext * ctx,
- GLuint n, GLint x, GLint y,
- const GLchan color[4], const GLubyte mask[])
-{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLuint i;
- GLint bottom = fxMesa->height - 1;
- GLuint data[MAX_WIDTH];
- GrColor_t gColor = FXCOLOR4(color);
+/* 16 bit, depth spanline and pixel functions */
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteMonoRGBASpan(...)\n");
- }
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_ZA16
- if (mask) {
- int span = 0;
-
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- data[span] = (GLuint) gColor;
- ++span;
- }
- else {
- if (span > 0) {
- writeRegionClipped(fxMesa, fxMesa->currentFB, x + i - span,
- bottom - y, GR_LFB_SRC_FMT_8888, span, 1, 0,
- (void *) data);
- span = 0;
- }
- }
- }
-
- if (span > 0)
- writeRegionClipped(fxMesa, fxMesa->currentFB, x + n - span,
- bottom - y, GR_LFB_SRC_FMT_8888, span, 1, 0,
- (void *) data);
- }
- else {
- for (i = 0; i < n; i++) {
- data[i] = (GLuint) gColor;
- }
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 2
- writeRegionClipped(fxMesa, fxMesa->currentFB, x, bottom - y,
- GR_LFB_SRC_FMT_8888, n, 1, 0, (void *) data);
- }
-}
+#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)
-#if 0
-static void
-fxDDReadRGBASpan(const GLcontext * ctx,
- GLuint n, GLint x, GLint y, GLubyte rgba[][4])
-{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLushort data[MAX_WIDTH];
- GLuint i;
- GLint bottom = fxMesa->height - 1;
+#define TAG(x) tdfx##x##_Z16
+#include "../dri/common/depthtmp.h"
- printf("read span %d, %d, %d\n", x, y, n);
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDReadRGBASpan(...)\n");
- }
- assert(n < MAX_WIDTH);
+/* 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).
+ */
- FX_grLfbReadRegion(fxMesa->currentFB, x, bottom - y, n, 1, 0, data);
+#undef LFB_MODE
+#define LFB_MODE GR_LFBWRITEMODE_Z32
- for (i = 0; i < n; i++) {
- GLushort pixel = data[i];
- rgba[i][RCOMP] = FX_PixelToR[pixel];
- rgba[i][GCOMP] = FX_PixelToG[pixel];
- rgba[i][BCOMP] = FX_PixelToB[pixel];
- rgba[i][ACOMP] = 255;
- }
-}
-#endif
+#undef BYTESPERPIXEL
+#define BYTESPERPIXEL 4
+#define WRITE_DEPTH( _x, _y, d ) \
+ *(GLuint *)(buf + _x*BYTESPERPIXEL + _y*pitch) = d << 8
-/*
- * 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
-read_R5G6B5_span(const GLcontext * ctx,
- GLuint n, GLint x, GLint y, GLubyte rgba[][4])
-{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GrLfbInfo_t info;
- BEGIN_BOARD_LOCK();
- 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 *data16 = (const GLushort *) info.lfbPtr
- + (winY - y) * srcStride + (winX + x);
- 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];
- GLuint pixel0 = pixel & 0xffff;
- GLuint pixel1 = pixel >> 16;
- rgba[i][RCOMP] = FX_PixelToR[pixel0];
- rgba[i][GCOMP] = FX_PixelToG[pixel0];
- rgba[i][BCOMP] = FX_PixelToB[pixel0];
- rgba[i][ACOMP] = 255;
- rgba[i + 1][RCOMP] = FX_PixelToR[pixel1];
- rgba[i + 1][GCOMP] = FX_PixelToG[pixel1];
- rgba[i + 1][BCOMP] = FX_PixelToB[pixel1];
- rgba[i + 1][ACOMP] = 255;
- }
- if (extraPixel) {
- GLushort pixel = data16[n];
- rgba[n][RCOMP] = FX_PixelToR[pixel];
- rgba[n][GCOMP] = FX_PixelToG[pixel];
- rgba[n][BCOMP] = FX_PixelToB[pixel];
- rgba[n][ACOMP] = 255;
- }
-
- grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
- }
- END_BOARD_LOCK();
-}
+#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!
+ */
+
/************************************************************************/
-/***** Pixel functions *****/
+/***** Span functions (optimized) *****/
/************************************************************************/
-static void
-fxDDWriteRGBAPixels(const GLcontext * ctx,
- GLuint n, const GLint x[], const GLint y[],
- CONST GLubyte rgba[][4], const GLubyte mask[])
+/*
+ * 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,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLuint i;
- GLint bottom = fxMesa->height - 1;
-
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteRGBAPixels(...)\n");
- }
-
- for (i = 0; i < n; i++)
- if (mask[i])
- LFB_WRITE_SPAN_MESA(fxMesa->currentFB, x[i], bottom - y[i],
- 1, 1, (void *) rgba[i]);
+ 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);
+ }
}
-static void
-fxDDWriteMonoRGBAPixels(const GLcontext * ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLchan color[4], const GLubyte mask[])
+/*
+ * 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,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLuint i;
- GLint bottom = fxMesa->height - 1;
- GrColor_t gColor = FXCOLOR4(color);
-
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteMonoRGBAPixels(...)\n");
- }
-
- for (i = 0; i < n; i++)
- if (mask[i])
- writeRegionClipped(fxMesa, fxMesa->currentFB, x[i], bottom - y[i],
- GR_LFB_SRC_FMT_8888, 1, 1, 0, (void *) &gColor);
+ 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);
+ }
}
-
-static void
-read_R5G6B5_pixels(const GLcontext * ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLubyte rgba[][4], const GLubyte mask[])
+/*
+ * 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,
+ GLuint n,
+ GLint x, GLint y,
+ GLubyte rgba[][4])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GrLfbInfo_t info;
- BEGIN_BOARD_LOCK();
- if (grLfbLock(GR_LFB_READ_ONLY,
- fxMesa->currentFB,
- GR_LFBWRITEMODE_ANY, GR_ORIGIN_UPPER_LEFT, FXFALSE, &info)) {
- const GLint srcStride = info.strideInBytes / 2; /* stride in GLushorts */
- const GLint winX = 0;
- const GLint winY = fxMesa->height - 1;
- GLuint i;
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- const GLushort *data16 = (const GLushort *) info.lfbPtr
- + (winY - y[i]) * srcStride + (winX + x[i]);
- const GLushort pixel = *data16;
- rgba[i][RCOMP] = FX_PixelToR[pixel];
- rgba[i][GCOMP] = FX_PixelToG[pixel];
- rgba[i][BCOMP] = FX_PixelToB[pixel];
- rgba[i][ACOMP] = 255;
- }
- }
- grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB);
- }
- END_BOARD_LOCK();
+ 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 *****/
+/***** Depth functions (optimized) *****/
/************************************************************************/
void
-fxDDWriteDepthSpan(GLcontext * ctx,
- GLuint n, GLint x, GLint y, const GLdepth depth[],
- const GLubyte mask[])
+fxReadDepthSpan_Z16(GLcontext * ctx,
+ GLuint n, GLint x, GLint y, GLdepth depth[])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
GLint bottom = fxMesa->height - 1;
+ GLushort depth16[MAX_WIDTH];
+ GLuint i;
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteDepthSpan(...)\n");
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "%s(...)\n", __FUNCTION__);
}
-
- if (mask) {
- GLint i;
- for (i = 0; i < n; i++) {
- if (mask[i]) {
- GLshort d = depth[i];
- writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x + i, bottom - y,
- GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &d);
- }
- }
- }
- else {
- GLushort depth16[MAX_WIDTH];
- GLint i;
- for (i = 0; i < n; i++) {
- depth16[i] = depth[i];
- }
- writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x, bottom - y,
- GR_LFB_SRC_FMT_ZA16, n, 1, 0, (void *) depth16);
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth16);
+ for (i = 0; i < n; i++) {
+ depth[i] = depth16[i];
}
}
void
-fxDDReadDepthSpan(GLcontext * ctx,
- GLuint n, GLint x, GLint y, GLdepth depth[])
+fxReadDepthSpan_Z24(GLcontext * ctx,
+ GLuint n, GLint x, GLint y, GLdepth depth[])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
GLint bottom = fxMesa->height - 1;
- GLushort depth16[MAX_WIDTH];
GLuint i;
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDReadDepthSpan(...)\n");
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "%s(...)\n", __FUNCTION__);
}
- FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth16);
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth);
for (i = 0; i < n; i++) {
- depth[i] = depth16[i];
+ depth[i] &= 0xffffff;
}
}
+/************************************************************************/
+/***** Stencil functions (optimized) *****/
+/************************************************************************/
+
+void fxWriteStencilSpan (GLcontext *ctx, GLuint n, GLint x, GLint y,
+ const GLstencil stencil[], const GLubyte mask[])
+{
+ /*
+ * XXX todo
+ */
+}
void
-fxDDWriteDepthPixels(GLcontext * ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLdepth depth[], const GLubyte mask[])
+fxReadStencilSpan(GLcontext * ctx,
+ GLuint n, GLint x, GLint y, GLstencil stencil[])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
GLint bottom = fxMesa->height - 1;
+ GLuint zs32[MAX_WIDTH];
GLuint i;
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDWriteDepthPixels(...)\n");
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "%s(...)\n", __FUNCTION__);
}
+ grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, zs32);
for (i = 0; i < n; i++) {
- if (mask[i]) {
- int xpos = x[i];
- int ypos = bottom - y[i];
- GLushort d = depth[i];
- writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, xpos, ypos,
- GR_LFB_SRC_FMT_ZA16, 1, 1, 0, (void *) &d);
- }
+ stencil[i] = zs32[i] >> 24;
}
}
-
-void
-fxDDReadDepthPixels(GLcontext * ctx, GLuint n,
- const GLint x[], const GLint y[], GLdepth depth[])
+void fxWriteStencilPixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ const GLstencil stencil[],
+ const GLubyte mask[])
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
- GLint bottom = fxMesa->height - 1;
- GLuint i;
-
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDReadDepthPixels(...)\n");
- }
+ /*
+ * XXX todo
+ */
+}
- for (i = 0; i < n; i++) {
- int xpos = x[i];
- int ypos = bottom - y[i];
- GLushort d;
- FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, xpos, ypos, 1, 1, 0, &d);
- depth[i] = d;
- }
+void fxReadStencilPixels (GLcontext *ctx, GLuint n,
+ const GLint x[], const GLint y[],
+ GLstencil stencil[])
+{
+ /*
+ * XXX todo
+ */
}
-/* Set the buffer used for reading */
-/* XXX support for separate read/draw buffers hasn't been tested */
+/*
+ * 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
-fxDDSetReadBuffer(GLcontext * ctx, GLframebuffer * buffer, GLenum mode)
+fxDDSetBuffer(GLcontext * ctx, GLframebuffer * buffer, GLuint bufferBit)
{
- fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx;
+ fxMesaContext fxMesa = FX_CONTEXT(ctx);
(void) buffer;
- if (MESA_VERBOSE & VERBOSE_DRIVER) {
- fprintf(stderr, "fxmesa: fxDDSetBuffer(%x)\n", (int) mode);
+ if (TDFX_DEBUG & VERBOSE_DRIVER) {
+ fprintf(stderr, "%s(%x)\n", __FUNCTION__, (int)bufferBit);
}
- if (mode == GL_FRONT_LEFT) {
+ if (bufferBit == FRONT_LEFT_BIT) {
fxMesa->currentFB = GR_BUFFER_FRONTBUFFER;
- FX_grRenderBuffer(fxMesa->currentFB);
+ grRenderBuffer(fxMesa->currentFB);
}
- else if (mode == GL_BACK_LEFT) {
+ else if (bufferBit == BACK_LEFT_BIT) {
fxMesa->currentFB = GR_BUFFER_BACKBUFFER;
- FX_grRenderBuffer(fxMesa->currentFB);
+ grRenderBuffer(fxMesa->currentFB);
}
}
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;
+ }
- swdd->SetReadBuffer = fxDDSetReadBuffer;
-
- swdd->WriteRGBASpan = fxDDWriteRGBASpan;
- swdd->WriteRGBSpan = fxDDWriteRGBSpan;
- swdd->WriteMonoRGBASpan = fxDDWriteMonoRGBASpan;
- swdd->WriteRGBAPixels = fxDDWriteRGBAPixels;
- swdd->WriteMonoRGBAPixels = fxDDWriteMonoRGBAPixels;
-
- swdd->WriteDepthSpan = fxDDWriteDepthSpan;
- swdd->WriteDepthPixels = fxDDWriteDepthPixels;
- swdd->ReadDepthSpan = fxDDReadDepthSpan;
- swdd->ReadDepthPixels = fxDDReadDepthPixels;
-
- /* swdd->ReadRGBASpan =fxDDReadRGBASpan; */
- swdd->ReadRGBASpan = read_R5G6B5_span;
- swdd->ReadRGBAPixels = read_R5G6B5_pixels;
+ 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
}
projects / mesa.git / blobdiff