From 807c6931fe683fd844ceec1b023232181e6aae03 Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 28 Dec 2010 16:10:20 +0000 Subject: xserver and mesa git update 28-12-2010 --- mesalib/src/mesa/state_tracker/st_cb_accum.c | 339 +++++++++++++++++++++++++++ 1 file changed, 339 insertions(+) create mode 100644 mesalib/src/mesa/state_tracker/st_cb_accum.c (limited to 'mesalib/src/mesa/state_tracker/st_cb_accum.c') diff --git a/mesalib/src/mesa/state_tracker/st_cb_accum.c b/mesalib/src/mesa/state_tracker/st_cb_accum.c new file mode 100644 index 000000000..743c9b525 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_cb_accum.c @@ -0,0 +1,339 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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: + * Brian Paul + */ + +#include "main/imports.h" +#include "main/image.h" +#include "main/macros.h" + +#include "st_debug.h" +#include "st_context.h" +#include "st_cb_accum.h" +#include "st_cb_fbo.h" +#include "st_texture.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "util/u_tile.h" + + +#if FEATURE_accum + +/** + * For hardware that supports deep color buffers, we could accelerate + * most/all the accum operations with blending/texturing. + * For now, just use the get/put_tile() functions and do things in software. + */ + + +void +st_clear_accum_buffer(struct gl_context *ctx, struct gl_renderbuffer *rb) +{ + struct st_renderbuffer *acc_strb = st_renderbuffer(rb); + const GLint xpos = ctx->DrawBuffer->_Xmin; + const GLint ypos = ctx->DrawBuffer->_Ymin; + const GLint width = ctx->DrawBuffer->_Xmax - xpos; + const GLint height = ctx->DrawBuffer->_Ymax - ypos; + size_t stride = acc_strb->stride; + GLubyte *data = acc_strb->data; + + if(!data) + return; + + switch (acc_strb->format) { + case PIPE_FORMAT_R16G16B16A16_SNORM: + { + GLshort r = FLOAT_TO_SHORT(ctx->Accum.ClearColor[0]); + GLshort g = FLOAT_TO_SHORT(ctx->Accum.ClearColor[1]); + GLshort b = FLOAT_TO_SHORT(ctx->Accum.ClearColor[2]); + GLshort a = FLOAT_TO_SHORT(ctx->Accum.ClearColor[3]); + int i, j; + for (i = 0; i < height; i++) { + GLshort *dst = (GLshort *) (data + (ypos + i) * stride + xpos * 8); + for (j = 0; j < width; j++) { + dst[0] = r; + dst[1] = g; + dst[2] = b; + dst[3] = a; + dst += 4; + } + } + } + break; + default: + _mesa_problem(ctx, "unexpected format in st_clear_accum_buffer()"); + } +} + + +/** For ADD/MULT */ +static void +accum_mad(struct gl_context *ctx, GLfloat scale, GLfloat bias, + GLint xpos, GLint ypos, GLint width, GLint height, + struct st_renderbuffer *acc_strb) +{ + size_t stride = acc_strb->stride; + GLubyte *data = acc_strb->data; + + switch (acc_strb->format) { + case PIPE_FORMAT_R16G16B16A16_SNORM: + { + int i, j; + for (i = 0; i < height; i++) { + GLshort *acc = (GLshort *) (data + (ypos + i) * stride + xpos * 8); + for (j = 0; j < width * 4; j++) { + float val = SHORT_TO_FLOAT(*acc) * scale + bias; + *acc++ = FLOAT_TO_SHORT(val); + } + } + } + break; + default: + _mesa_problem(NULL, "unexpected format in st_clear_accum_buffer()"); + } +} + + +static void +accum_accum(struct st_context *st, GLfloat value, + GLint xpos, GLint ypos, GLint width, GLint height, + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_transfer *color_trans; + size_t stride = acc_strb->stride; + GLubyte *data = acc_strb->data; + GLfloat *buf; + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + color_trans = pipe_get_transfer(st->pipe, + color_strb->texture, + 0, 0, + PIPE_TRANSFER_READ, xpos, ypos, + width, height); + + buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); + + pipe_get_tile_rgba(pipe, color_trans, 0, 0, width, height, buf); + + switch (acc_strb->format) { + case PIPE_FORMAT_R16G16B16A16_SNORM: + { + const GLfloat *color = buf; + int i, j; + for (i = 0; i < height; i++) { + GLshort *acc = (GLshort *) (data + (ypos + i) * stride + xpos * 8); + for (j = 0; j < width * 4; j++) { + float val = *color++ * value; + *acc++ += FLOAT_TO_SHORT(val); + } + } + } + break; + default: + _mesa_problem(NULL, "unexpected format in st_clear_accum_buffer()"); + } + + free(buf); + pipe->transfer_destroy(pipe, color_trans); +} + + +static void +accum_load(struct st_context *st, GLfloat value, + GLint xpos, GLint ypos, GLint width, GLint height, + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) +{ + struct pipe_context *pipe = st->pipe; + struct pipe_transfer *color_trans; + size_t stride = acc_strb->stride; + GLubyte *data = acc_strb->data; + GLfloat *buf; + + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + color_trans = pipe_get_transfer(st->pipe, color_strb->texture, + 0, 0, + PIPE_TRANSFER_READ, xpos, ypos, + width, height); + + buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); + + pipe_get_tile_rgba(pipe, color_trans, 0, 0, width, height, buf); + + switch (acc_strb->format) { + case PIPE_FORMAT_R16G16B16A16_SNORM: + { + const GLfloat *color = buf; + int i, j; + for (i = 0; i < height; i++) { + GLshort *acc = (GLshort *) (data + (ypos + i) * stride + xpos * 8); + for (j = 0; j < width * 4; j++) { + float val = *color++ * value; + *acc++ = FLOAT_TO_SHORT(val); + } + } + } + break; + default: + _mesa_problem(NULL, "unexpected format in st_clear_accum_buffer()"); + } + + free(buf); + pipe->transfer_destroy(pipe, color_trans); +} + + +static void +accum_return(struct gl_context *ctx, GLfloat value, + GLint xpos, GLint ypos, GLint width, GLint height, + struct st_renderbuffer *acc_strb, + struct st_renderbuffer *color_strb) +{ + struct pipe_context *pipe = st_context(ctx)->pipe; + const GLubyte *colormask = ctx->Color.ColorMask[0]; + enum pipe_transfer_usage usage; + struct pipe_transfer *color_trans; + size_t stride = acc_strb->stride; + const GLubyte *data = acc_strb->data; + GLfloat *buf; + + if (ST_DEBUG & DEBUG_FALLBACK) + debug_printf("%s: fallback processing\n", __FUNCTION__); + + buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat)); + + if (!colormask[0] || !colormask[1] || !colormask[2] || !colormask[3]) + usage = PIPE_TRANSFER_READ_WRITE; + else + usage = PIPE_TRANSFER_WRITE; + + color_trans = pipe_get_transfer(st_context(ctx)->pipe, + color_strb->texture, 0, 0, + usage, + xpos, ypos, + width, height); + + if (usage & PIPE_TRANSFER_READ) + pipe_get_tile_rgba(pipe, color_trans, 0, 0, width, height, buf); + + switch (acc_strb->format) { + case PIPE_FORMAT_R16G16B16A16_SNORM: + { + GLfloat *color = buf; + int i, j, ch; + for (i = 0; i < height; i++) { + const GLshort *acc = (const GLshort *) (data + (ypos + i) * stride + xpos * 8); + for (j = 0; j < width; j++) { + for (ch = 0; ch < 4; ch++) { + if (colormask[ch]) { + GLfloat val = SHORT_TO_FLOAT(*acc * value); + *color = CLAMP(val, 0.0f, 1.0f); + } + else { + /* No change */ + } + ++acc; + ++color; + } + } + } + } + break; + default: + _mesa_problem(NULL, "unexpected format in st_clear_accum_buffer()"); + } + + pipe_put_tile_rgba(pipe, color_trans, 0, 0, width, height, buf); + + free(buf); + pipe->transfer_destroy(pipe, color_trans); +} + + +static void +st_Accum(struct gl_context *ctx, GLenum op, GLfloat value) +{ + struct st_context *st = st_context(ctx); + struct st_renderbuffer *acc_strb + = st_renderbuffer(ctx->DrawBuffer->Attachment[BUFFER_ACCUM].Renderbuffer); + struct st_renderbuffer *color_strb + = st_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer); + + const GLint xpos = ctx->DrawBuffer->_Xmin; + const GLint ypos = ctx->DrawBuffer->_Ymin; + const GLint width = ctx->DrawBuffer->_Xmax - xpos; + const GLint height = ctx->DrawBuffer->_Ymax - ypos; + + if(!acc_strb->data) + return; + + switch (op) { + case GL_ADD: + if (value != 0.0F) { + accum_mad(ctx, 1.0, value, xpos, ypos, width, height, acc_strb); + } + break; + case GL_MULT: + if (value != 1.0F) { + accum_mad(ctx, value, 0.0, xpos, ypos, width, height, acc_strb); + } + break; + case GL_ACCUM: + if (value != 0.0F) { + accum_accum(st, value, xpos, ypos, width, height, acc_strb, color_strb); + } + break; + case GL_LOAD: + accum_load(st, value, xpos, ypos, width, height, acc_strb, color_strb); + break; + case GL_RETURN: + accum_return(ctx, value, xpos, ypos, width, height, acc_strb, color_strb); + break; + default: + assert(0); + } +} + + + +void st_init_accum_functions(struct dd_function_table *functions) +{ + functions->Accum = st_Accum; +} + +#endif /* FEATURE_accum */ -- cgit v1.2.3