diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxddspan.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxddspan.c | 257 |
1 files changed, 249 insertions, 8 deletions
diff --git a/src/mesa/drivers/glide/fxddspan.c b/src/mesa/drivers/glide/fxddspan.c index 04d832d8d9f..e106ce291e2 100644 --- a/src/mesa/drivers/glide/fxddspan.c +++ b/src/mesa/drivers/glide/fxddspan.c @@ -1,4 +1,9 @@ -/* $Id: fxddspan.c,v 1.22 2002/11/04 20:29:04 brianp Exp $ */ +/* Hack alert: + * Depth32 functions won't compile with Glide2 + * Optimize and check endianess for `read_R8G8B8_pixels' + */ + +/* $Id: fxddspan.c,v 1.23 2003/07/17 14:50:12 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -42,6 +47,7 @@ #if defined(FX) #include "fxdrv.h" +#include "fxglidew.h" #include "swrast/swrast.h" #ifdef _MSC_VER @@ -347,6 +353,69 @@ read_R5G6B5_span(const GLcontext * ctx, END_BOARD_LOCK(); } +/* + * 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 read_R5G5B5_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]; + rgba[i][RCOMP] = FX_rgb_scale_5[ pixel & 0x1f]; + rgba[i][GCOMP] = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; + rgba[i][BCOMP] = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; + rgba[i][ACOMP] = (pixel & 0x8000) ? 255 : 0; + rgba[i + 1][RCOMP] = FX_rgb_scale_5[(pixel >> 16) & 0x1f]; + rgba[i + 1][GCOMP] = FX_rgb_scale_5[(pixel >> 21) & 0x1f]; + rgba[i + 1][BCOMP] = FX_rgb_scale_5[(pixel >> 26) & 0x1f]; + rgba[i + 1][ACOMP] = (pixel & 0x80000000) ? 255 : 0; + } + if (extraPixel) { + GLushort pixel = data16[n]; + rgba[n][RCOMP] = FX_rgb_scale_5[ pixel & 0x1f]; + rgba[n][GCOMP] = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; + rgba[n][BCOMP] = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; + rgba[n][ACOMP] = (pixel & 0x8000) ? 255 : 0; + } + + grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); + } + END_BOARD_LOCK(); +} + +/* + * 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 read_R8G8B8_span (const GLcontext * ctx, + GLuint n, + GLint x, GLint y, + GLubyte rgba[][4]) +{ + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + BEGIN_BOARD_LOCK(); + FX_grLfbReadRegion(fxMesa->currentFB, x, fxMesa->height - 1 - y, n, 1, n * 4, rgba); + END_BOARD_LOCK(); +} + /************************************************************************/ /***** Pixel functions *****/ @@ -424,6 +493,68 @@ read_R5G6B5_pixels(const GLcontext * ctx, } +static void read_R5G5B5_pixels (const GLcontext * ctx, + GLuint n, + const GLint x[], const GLint y[], + GLubyte rgba[][4], + const GLubyte mask[]) +{ + 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_rgb_scale_5[ pixel & 0x1f]; + rgba[i][GCOMP] = FX_rgb_scale_5[(pixel >> 5) & 0x1f]; + rgba[i][BCOMP] = FX_rgb_scale_5[(pixel >> 10) & 0x1f]; + rgba[i][ACOMP] = (pixel & 0x8000) ? 255 : 0; + } + } + grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); + } + END_BOARD_LOCK(); +} + + +static void +read_R8G8B8_pixels(const GLcontext * ctx, + GLuint n, const GLint x[], const GLint y[], + GLubyte rgba[][4], const GLubyte mask[]) +{ + 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 / 4; /* stride in GLuints */ + const GLint winX = 0; + const GLint winY = fxMesa->height - 1; + GLuint i; + for (i = 0; i < n; i++) { + if (mask[i]) { + const GLuint *data32 = (const GLuint *) info.lfbPtr + + (winY - y[i]) * srcStride + (winX + x[i]); + const GLuint pixel = *data32; + *(GLuint *)&rgba[i][0] = pixel; + } + } + grLfbUnlock(GR_LFB_READ_ONLY, fxMesa->currentFB); + } + END_BOARD_LOCK(); +} + + /************************************************************************/ /***** Depth functions *****/ @@ -465,6 +596,35 @@ fxDDWriteDepthSpan(GLcontext * ctx, void +fxDDWriteDepth32Span(GLcontext * ctx, + GLuint n, GLint x, GLint y, const GLdepth depth[], + const GLubyte mask[]) +{ + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + GLint bottom = fxMesa->height - 1; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDWriteDepth32Span(...)\n"); + } + + + if (mask) { + GLint i; + for (i = 0; i < n; i++) { + if (mask[i]) { + writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x + i, bottom - y, + GR_LFBWRITEMODE_Z32, 1, 1, 0, (void *) &depth[i]); + } + } + } + else { + writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, x, bottom - y, + GR_LFBWRITEMODE_Z32, n, 1, 0, (void *) depth); + } +} + + +void fxDDReadDepthSpan(GLcontext * ctx, GLuint n, GLint x, GLint y, GLdepth depth[]) { @@ -484,6 +644,21 @@ fxDDReadDepthSpan(GLcontext * ctx, } +void +fxDDReadDepth32Span(GLcontext * ctx, + GLuint n, GLint x, GLint y, GLdepth depth[]) +{ + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + GLint bottom = fxMesa->height - 1; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDReadDepth32Span(...)\n"); + } + + FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, x, bottom - y, n, 1, 0, depth); +} + + void fxDDWriteDepthPixels(GLcontext * ctx, @@ -511,6 +686,30 @@ fxDDWriteDepthPixels(GLcontext * ctx, void +fxDDWriteDepth32Pixels(GLcontext * ctx, + GLuint n, const GLint x[], const GLint y[], + const GLdepth depth[], const GLubyte mask[]) +{ + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + GLint bottom = fxMesa->height - 1; + GLuint i; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDWriteDepth32Pixels(...)\n"); + } + + for (i = 0; i < n; i++) { + if (mask[i]) { + int xpos = x[i]; + int ypos = bottom - y[i]; + writeRegionClipped(fxMesa, GR_BUFFER_AUXBUFFER, xpos, ypos, + GR_LFBWRITEMODE_Z32, 1, 1, 0, (void *) &depth[i]); + } + } +} + + +void fxDDReadDepthPixels(GLcontext * ctx, GLuint n, const GLint x[], const GLint y[], GLdepth depth[]) { @@ -532,6 +731,26 @@ fxDDReadDepthPixels(GLcontext * ctx, GLuint n, } +void +fxDDReadDepth32Pixels(GLcontext * ctx, GLuint n, + const GLint x[], const GLint y[], GLdepth depth[]) +{ + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + GLint bottom = fxMesa->height - 1; + GLuint i; + + if (MESA_VERBOSE & VERBOSE_DRIVER) { + fprintf(stderr, "fxmesa: fxDDReadDepth32Pixels(...)\n"); + } + + for (i = 0; i < n; i++) { + int xpos = x[i]; + int ypos = bottom - y[i]; + FX_grLfbReadRegion(GR_BUFFER_AUXBUFFER, xpos, ypos, 1, 1, 0, &depth[i]); + } +} + + /* Set the buffer used for reading */ /* XXX support for separate read/draw buffers hasn't been tested */ @@ -573,14 +792,36 @@ fxSetupDDSpanPointers(GLcontext * ctx) 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; + { + fxMesaContext fxMesa = (fxMesaContext) ctx->DriverCtx; + switch (fxMesa->colDepth) { + case 15: + swdd->ReadRGBASpan = read_R5G5B5_span; + swdd->ReadRGBAPixels = read_R5G5B5_pixels; + swdd->WriteDepthSpan = fxDDWriteDepthSpan; + swdd->WriteDepthPixels = fxDDWriteDepthPixels; + swdd->ReadDepthSpan = fxDDReadDepthSpan; + swdd->ReadDepthPixels = fxDDReadDepthPixels; + break; + case 16: + swdd->ReadRGBASpan = read_R5G6B5_span; + swdd->ReadRGBAPixels = read_R5G6B5_pixels; + swdd->WriteDepthSpan = fxDDWriteDepthSpan; + swdd->WriteDepthPixels = fxDDWriteDepthPixels; + swdd->ReadDepthSpan = fxDDReadDepthSpan; + swdd->ReadDepthPixels = fxDDReadDepthPixels; + break; + case 32: + swdd->ReadRGBASpan = read_R8G8B8_span; + swdd->ReadRGBAPixels = read_R8G8B8_pixels; + swdd->WriteDepthSpan = fxDDWriteDepth32Span; + swdd->WriteDepthPixels = fxDDWriteDepth32Pixels; + swdd->ReadDepthSpan = fxDDReadDepth32Span; + swdd->ReadDepthPixels = fxDDReadDepth32Pixels; + break; + } + } } |