From 280bf89bd4a6bb7977abb00b88d59234d2c80844 Mon Sep 17 00:00:00 2001 From: George Sapountzis Date: Sun, 11 May 2008 14:43:40 +0300 Subject: Add DRI driver that uses the mesa swrast module. --- src/mesa/drivers/dri/swrast/swrast_spantemp.h | 328 ++++++++++++++++++++++++++ 1 file changed, 328 insertions(+) create mode 100644 src/mesa/drivers/dri/swrast/swrast_spantemp.h (limited to 'src/mesa/drivers/dri/swrast/swrast_spantemp.h') diff --git a/src/mesa/drivers/dri/swrast/swrast_spantemp.h b/src/mesa/drivers/dri/swrast/swrast_spantemp.h new file mode 100644 index 0000000000..7c60c15974 --- /dev/null +++ b/src/mesa/drivers/dri/swrast/swrast_spantemp.h @@ -0,0 +1,328 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.1 + * + * Copyright (C) 1999-2006 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. + */ + + +/* + * This is a modified version of swrast/s_spantemp.h for rendering to X11 + * drawables. The no-mask paths use a scratch row to avoid repeated calls + * to xserver. + * + * For the mask paths we always use an array of 4 elements of RB_TYPE because + * we should pad "image" pitch to 32 bits. + */ + + +#ifndef _SWRAST_SPANTEMP_ONCE +#define _SWRAST_SPANTEMP_ONCE + +static inline void +PUT_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p ) +{ + __DRIcontext *ctx = swrast_context(glCtx); + __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer); + + __DRIscreen *screen = ctx->driScreenPriv; + + screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW, + x, y, 1, 1, (char *)p, + draw->loaderPrivate); +} + + +static inline void +GET_PIXEL( GLcontext *glCtx, GLint x, GLint y, GLubyte *p ) +{ + __DRIcontext *ctx = swrast_context(glCtx); + __DRIdrawable *draw = swrast_drawable(glCtx->ReadBuffer); + + __DRIscreen *screen = ctx->driScreenPriv; + + screen->swrast_loader->getImage(draw, x, y, 1, 1, (char *)p, + draw->loaderPrivate); +} + +static inline void +PUT_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row ) +{ + __DRIcontext *ctx = swrast_context(glCtx); + __DRIdrawable *draw = swrast_drawable(glCtx->DrawBuffer); + + __DRIscreen *screen = ctx->driScreenPriv; + + screen->swrast_loader->putImage(draw, __DRI_SWRAST_IMAGE_OP_DRAW, + x, y, n, 1, row, + draw->loaderPrivate); +} + +static inline void +GET_ROW( GLcontext *glCtx, GLint x, GLint y, GLuint n, char *row ) +{ + __DRIcontext *ctx = swrast_context(glCtx); + __DRIdrawable *draw = swrast_drawable(glCtx->ReadBuffer); + + __DRIscreen *screen = ctx->driScreenPriv; + + screen->swrast_loader->getImage(draw, x, y, n, 1, row, + draw->loaderPrivate); +} + +#endif /* _SWRAST_SPANTEMP_ONCE */ + + +/* + * Templates for the span/pixel-array write/read functions called via + * the gl_renderbuffer's GetRow, GetValues, PutRow, PutMonoRow, PutValues + * and PutMonoValues functions. + * + * Define the following macros before including this file: + * NAME(BASE) to generate the function name (i.e. add prefix or suffix) + * RB_TYPE the renderbuffer DataType + * CI_MODE if set, color index mode, else RGBA + * 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_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 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 CI_MODE +#define RB_COMPONENTS 1 +#elif !defined(RB_COMPONENTS) +#define RB_COMPONENTS 4 +#endif + + +static void +NAME(get_row)( GLcontext *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, void *values ) +{ +#ifdef SPAN_VARS + SPAN_VARS +#endif +#ifdef CI_MODE + RB_TYPE *dest = (RB_TYPE *) values; +#else + RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values; +#endif + GLuint i; + char *row = swrast_drawable(ctx->DrawBuffer)->row; + INIT_PIXEL_PTR(pixel, x, y); + GET_ROW( ctx, x, YFLIP(xrb, y), count, row ); + for (i = 0; i < count; i++) { + FETCH_PIXEL(dest[i], pixel); + INC_PIXEL_PTR(pixel); + } + (void) rb; +} + + +static void +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 +#ifdef CI_MODE + RB_TYPE *dest = (RB_TYPE *) values; +#else + RB_TYPE (*dest)[RB_COMPONENTS] = (RB_TYPE (*)[RB_COMPONENTS]) values; +#endif + GLuint i; + for (i = 0; i < count; i++) { + RB_TYPE pixel[4]; + GET_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel); + FETCH_PIXEL(dest[i], pixel); + } + (void) rb; +} + + +static void +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 RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values; + GLuint i; + if (mask) { + for (i = 0; i < count; i++) { + if (mask[i]) { + RB_TYPE pixel[4]; + STORE_PIXEL(pixel, x + i, y, src[i]); + PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel); + } + } + } + else { + char *row = swrast_drawable(ctx->DrawBuffer)->row; + INIT_PIXEL_PTR(pixel, x, y); + for (i = 0; i < count; i++) { + STORE_PIXEL(pixel, x + i, y, src[i]); + INC_PIXEL_PTR(pixel); + } + PUT_ROW( ctx, x, YFLIP(xrb, y), count, row ); + } + (void) rb; +} + + +#if !defined(CI_MODE) +static void +NAME(put_row_rgb)( 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 RB_TYPE (*src)[3] = (const RB_TYPE (*)[3]) values; + GLuint i; + if (mask) { + for (i = 0; i < count; i++) { + if (mask[i]) { + RB_TYPE pixel[4]; +#ifdef STORE_PIXEL_RGB + STORE_PIXEL_RGB(pixel, x + i, y, src[i]); +#else + STORE_PIXEL(pixel, x + i, y, src[i]); +#endif + PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel); + } + } + } + else { + char *row = swrast_drawable(ctx->DrawBuffer)->row; + INIT_PIXEL_PTR(pixel, x, y); + for (i = 0; i < count; i++) { +#ifdef STORE_PIXEL_RGB + STORE_PIXEL_RGB(pixel, x + i, y, src[i]); +#else + STORE_PIXEL(pixel, x + i, y, src[i]); +#endif + INC_PIXEL_PTR(pixel); + } + PUT_ROW( ctx, x, YFLIP(xrb, y), count, row ); + } + (void) rb; +} +#endif + + +static void +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 + const RB_TYPE *src = (const RB_TYPE *) value; + GLuint i; + if (mask) { + for (i = 0; i < count; i++) { + if (mask[i]) { + RB_TYPE pixel[4]; + STORE_PIXEL(pixel, x + i, y, src); + PUT_PIXEL(ctx, x + i, YFLIP(xrb, y), pixel); + } + } + } + else { + char *row = swrast_drawable(ctx->DrawBuffer)->row; + INIT_PIXEL_PTR(pixel, x, y); + for (i = 0; i < count; i++) { + STORE_PIXEL(pixel, x + i, y, src); + INC_PIXEL_PTR(pixel); + } + PUT_ROW( ctx, x, YFLIP(xrb, y), count, row ); + } + (void) rb; +} + + +static void +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 RB_TYPE (*src)[RB_COMPONENTS] = (const RB_TYPE (*)[RB_COMPONENTS]) values; + GLuint i; + ASSERT(mask); + for (i = 0; i < count; i++) { + if (mask[i]) { + RB_TYPE pixel[4]; + STORE_PIXEL(pixel, x[i], y[i], src[i]); + PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel); + } + } + (void) rb; +} + + +static void +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 + const RB_TYPE *src = (const RB_TYPE *) value; + GLuint i; + ASSERT(mask); + for (i = 0; i < count; i++) { + if (mask[i]) { + RB_TYPE pixel[4]; + STORE_PIXEL(pixel, x[i], y[i], src); + PUT_PIXEL(ctx, x[i], YFLIP(xrb, y[i]), pixel); + } + } + (void) rb; +} + + +#undef NAME +#undef RB_TYPE +#undef RB_COMPONENTS +#undef CI_MODE +#undef SPAN_VARS +#undef INIT_PIXEL_PTR +#undef INC_PIXEL_PTR +#undef STORE_PIXEL +#undef STORE_PIXEL_RGB +#undef FETCH_PIXEL -- cgit v1.2.3