diff options
Diffstat (limited to 'src/mesa/swrast')
| -rw-r--r-- | src/mesa/swrast/s_spantemp.h | 321 |
1 files changed, 103 insertions, 218 deletions
diff --git a/src/mesa/swrast/s_spantemp.h b/src/mesa/swrast/s_spantemp.h index 5c67758035f..a60d45fb901 100644 --- a/src/mesa/swrast/s_spantemp.h +++ b/src/mesa/swrast/s_spantemp.h @@ -25,340 +25,225 @@ /* * Templates for the span/pixel-array write/read functions called via - * swrast. This is intended for memory-based framebuffers (like OSMesa). + * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues + * and PutMonoValues functions. * * Define the following macros before including this file: * NAME(PREFIX) to generate the function name + * FORMAT must be either GL_RGBA, GL_RGBA8 or GL_COLOR_INDEX8_EXT * SPAN_VARS to declare any local variables * INIT_PIXEL_PTR(P, X, Y) to initialize a pointer to a pixel * INC_PIXEL_PTR(P) to increment a pixel pointer by one pixel - * STORE_RGB_PIXEL(P, X, Y, R, G, B) to store RGB values in pixel P - * STORE_RGBA_PIXEL(P, X, Y, R, G, B, A) to store RGBA values in pixel P - * FETCH_RGBA_PIXEL(R, G, B, A, P) to fetch RGBA values from pixel P + * STORE_PIXEL(DST, X, Y, VALUE) to store pixel values in buffer + * FETCH_PIXEL(DST, SRC) to fetch pixel values from buffer * - * Note that in the above STORE_RGBx_PIXEL macros, we also pass in the (X,Y) - * coordinates for the pixels to be stored, which enables dithering in 8-bit - * and 15/16-bit display modes. Most undithered modes or 24/32-bit display - * modes will simply ignore the passed in (X,Y) values. - * - * For color index mode: - * STORE_CI_PIXEL(P, CI) to store a color index in pixel P - * FETCH_CI_PIXEL(CI, P) to fetch a pixel index from pixel P + * Note that in the STORE_PIXEL macros, we also pass in the (X,Y) coordinates + * for the pixels to be stored. This is useful when dithering and probably + * ignored otherwise. */ #include "macros.h" -#ifdef STORE_RGBA_PIXEL static void -NAME(write_rgba_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, - const void *values, const GLubyte mask[] ) +NAME(get_row)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, void *values ) { #ifdef SPAN_VARS SPAN_VARS #endif - const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values; +#if FORMAT == GL_RGBA + GLchan (*dest)[4] = (GLchan (*)[4]) values; +#elif FORMAT == GL_RGBA8 + GLubyte (*dest)[4] = (GLubyte (*)[4]) values; +#elif FORMAT == GL_COLOR_INDEX8_EXT + GLubyte *dest = (GLubyte *) values; +#else +#error FORMAT must be set!!!! +#endif GLuint i; INIT_PIXEL_PTR(pixel, x, y); - if (mask) { - for (i = 0; i < n; i++) { - if (mask[i]) { - STORE_RGBA_PIXEL(pixel, x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], - rgba[i][BCOMP], rgba[i][ACOMP]); - } - INC_PIXEL_PTR(pixel); - } - } - else { - for (i = 0; i < n; i++) { - STORE_RGBA_PIXEL(pixel, x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], - rgba[i][BCOMP], rgba[i][ACOMP]); - INC_PIXEL_PTR(pixel); - } + for (i = 0; i < count; i++) { + FETCH_PIXEL(dest[i], pixel); + INC_PIXEL_PTR(pixel); } } static void -NAME(write_rgb_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, - const void *values, const GLubyte mask[] ) +NAME(get_values)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], void *values ) { #ifdef SPAN_VARS SPAN_VARS #endif - const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values; +#if FORMAT == GL_RGBA + GLchan (*dest)[4] = (GLchan (*)[4]) values; +#elif FORMAT == GL_RGBA8 + GLubyte (*dest)[4] = (GLubyte (*)[4]) values; +#elif FORMAT == GL_COLOR_INDEX8_EXT + GLubyte *dest = (GLubyte *) values; +#endif GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - if (mask) { - for (i = 0; i < n; i++) { - if (mask[i]) { - STORE_RGB_PIXEL(pixel, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], - rgb[i][BCOMP]); - } - INC_PIXEL_PTR(pixel); - } - } - else { - for (i = 0; i < n; i++) { - STORE_RGB_PIXEL(pixel, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], - rgb[i][BCOMP]); - INC_PIXEL_PTR(pixel); - } + for (i = 0; i < count; i++) { + INIT_PIXEL_PTR(pixel, x[i], y[i]); + FETCH_PIXEL(dest[i], pixel); } } + static void -NAME(write_monorgba_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, - const void *value, const GLubyte mask[] ) +NAME(put_row)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + const void *values, const GLubyte mask[] ) { #ifdef SPAN_VARS SPAN_VARS #endif - const GLubyte *color = (const GLubyte *) value; +#if FORMAT == GL_RGBA + const GLchan (*src)[4] = (const GLchan (*)[4]) values; +#elif FORMAT == GL_RGBA8 + const GLubyte (*src)[4] = (const GLubyte (*)[4]) values; +#elif FORMAT == GL_COLOR_INDEX8_EXT + const GLubyte (*src)[1] = (const GLubyte (*)[1]) values; +#endif GLuint i; INIT_PIXEL_PTR(pixel, x, y); if (mask) { - for (i = 0; i < n; i++) { + for (i = 0; i < count; i++) { if (mask[i]) { - STORE_RGBA_PIXEL(pixel, x+i, y, color[RCOMP], color[GCOMP], - color[BCOMP], color[ACOMP]); + STORE_PIXEL(pixel, x + i, y, src[i]); } INC_PIXEL_PTR(pixel); } } else { - for (i = 0; i < n; i++) { - STORE_RGBA_PIXEL(pixel, x+i, y, color[RCOMP], color[GCOMP], - color[BCOMP], color[ACOMP]); + for (i = 0; i < count; i++) { + STORE_PIXEL(pixel, x + i, y, src[i]); INC_PIXEL_PTR(pixel); } } } +#if 00 static void -NAME(write_rgba_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - const void *values, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values; - GLuint i; - ASSERT(mask); - for (i = 0; i < n; i++) { - if (mask[i]) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_RGBA_PIXEL(pixel, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], - rgba[i][BCOMP], rgba[i][ACOMP]); - } - } -} - -static void -NAME(write_monorgba_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - const void *value, const GLubyte mask[] ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - const GLubyte *color = (const GLubyte *) value; - GLuint i; - ASSERT(mask); - for (i = 0; i < n; i++) { - if (mask[i]) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_RGBA_PIXEL(pixel, x[i], y[i], color[RCOMP], color[GCOMP], - color[BCOMP], color[ACOMP]); - } - } -} - -static void -NAME(read_rgba_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, void *values ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - for (i = 0; i < n; i++) { - FETCH_RGBA_PIXEL(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], - rgba[i][ACOMP], pixel); - INC_PIXEL_PTR(pixel); - } -} - -static void -NAME(read_rgba_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - void *values) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; - GLuint i; - ASSERT(mask); - for (i = 0; i < n; i++) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - FETCH_RGBA_PIXEL(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], - rgba[i][ACOMP], pixel); - } -} - - -#endif /* STORE_RGBA_PIXEL */ - - - -#ifdef STORE_CI_PIXEL - -static void -NAME(write_index_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, - const void *values, const GLubyte mask[] ) +NAME(write_rgb_span)( const GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + CONST GLchan rgb[][3], const GLubyte mask[] ) { #ifdef SPAN_VARS SPAN_VARS #endif - const GLuint *index = (const GLuint *) values; GLuint i; INIT_PIXEL_PTR(pixel, x, y); if (mask) { - for (i = 0; i < n; i++) { + for (i = 0; i < count; i++) { if (mask[i]) { - STORE_CI_PIXEL(pixel, index[i]); + STORE_RGB_PIXEL(pixel, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], + rgb[i][BCOMP]); } INC_PIXEL_PTR(pixel); } } else { - for (i = 0; i < n; i++) { - STORE_CI_PIXEL(pixel, index[i]); + for (i = 0; i < count; i++) { + STORE_RGB_PIXEL(pixel, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], + rgb[i][BCOMP]); INC_PIXEL_PTR(pixel); } } } - +#endif static void -NAME(write_monoindex_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, - const void *value, const GLubyte mask[] ) +NAME(put_mono_row)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, + const void *value, const GLubyte mask[] ) { #ifdef SPAN_VARS SPAN_VARS #endif - GLuint colorIndex = *((GLuint *) value); +#if FORMAT == GL_RGBA + const GLchan *src = (const GLchan *) value; +#elif FORMAT == GL_RGBA8 + const GLubyte *src = (const GLubyte *) value; +#elif FORMAT == GL_COLOR_INDEX8_EXT + const GLubyte *src = (const GLubyte *) value; +#endif GLuint i; INIT_PIXEL_PTR(pixel, x, y); if (mask) { - for (i = 0; i < n; i++) { + for (i = 0; i < count; i++) { if (mask[i]) { - STORE_CI_PIXEL(pixel, colorIndex); + STORE_PIXEL(pixel, x + i, y, src); } INC_PIXEL_PTR(pixel); } - } + } else { - for (i = 0; i < n; i++) { - STORE_CI_PIXEL(pixel, colorIndex); + for (i = 0; i < count; i++) { + STORE_PIXEL(pixel, x + i, y, src); INC_PIXEL_PTR(pixel); } - } + } } static void -NAME(write_index_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - const void *values, const GLubyte mask[] ) +NAME(put_values)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + const void *values, const GLubyte mask[] ) { #ifdef SPAN_VARS SPAN_VARS #endif - const GLuint *index = (const GLuint *) values; +#if FORMAT == GL_RGBA + const GLchan (*src)[4] = (const GLchan (*)[4]) values; +#elif FORMAT == GL_RGBA8 + const GLubyte (*src)[4] = (const GLubyte (*)[4]) values; +#elif FORMAT == GL_COLOR_INDEX8_EXT + const GLubyte (*src)[1] = (const GLubyte (*)[1]) values; +#endif GLuint i; ASSERT(mask); - for (i = 0; i < n; i++) { + for (i = 0; i < count; i++) { if (mask[i]) { INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_CI_PIXEL(pixel, index[i]); + STORE_PIXEL(pixel, x[i], y[i], src[i]); } } } static void -NAME(write_monoindex_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - const void *value, const GLubyte mask[] ) +NAME(put_mono_values)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + const void *value, const GLubyte mask[] ) { #ifdef SPAN_VARS SPAN_VARS #endif - GLuint colorIndex = *((GLuint *) value); +#if FORMAT == GL_RGBA + const GLchan *src = (const GLchan *) value; +#elif FORMAT == GL_RGBA8 + const GLubyte *src = (const GLubyte *) value; +#elif FORMAT == GL_COLOR_INDEX8_EXT + const GLubyte *src = (const GLubyte *) value; +#endif GLuint i; ASSERT(mask); - for (i = 0; i < n; i++) { + for (i = 0; i < count; i++) { if (mask[i]) { INIT_PIXEL_PTR(pixel, x[i], y[i]); - STORE_CI_PIXEL(pixel, colorIndex); + STORE_PIXEL(pixel, x[i], y[i], src); } } } -static void -NAME(read_index_span)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, GLint x, GLint y, void *values ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - GLuint *index = (GLuint *) values; - GLuint i; - INIT_PIXEL_PTR(pixel, x, y); - for (i = 0; i < n; i++) { - FETCH_CI_PIXEL(index[i], pixel); - INC_PIXEL_PTR(pixel); - } -} - - -static void -NAME(read_index_pixels)( GLcontext *ctx, struct gl_renderbuffer *rb, - GLuint n, const GLint x[], const GLint y[], - void *values ) -{ -#ifdef SPAN_VARS - SPAN_VARS -#endif - GLuint *index = (GLuint *) values; - GLuint i; - ASSERT(mask); - for (i = 0; i < n; i++) { - INIT_PIXEL_PTR(pixel, x[i], y[i]); - FETCH_CI_PIXEL(index[i], pixel); - } -} - -#endif /* STORE_CI_PIXEL */ - - - #undef NAME #undef SPAN_VARS #undef INIT_PIXEL_PTR #undef INC_PIXEL_PTR -#undef STORE_RGB_PIXEL -#undef STORE_RGBA_PIXEL -#undef FETCH_RGBA_PIXEL -#undef STORE_CI_PIXEL -#undef FETCH_CI_PIXEL +#undef STORE_PIXEL +#undef FETCH_PIXEL +#undef FORMAT |