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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c430
1 files changed, 0 insertions, 430 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c b/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c
deleted file mode 100644
index 24470a735..000000000
--- a/nx-X11/extras/Mesa/src/mesa/swrast/s_texstore.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.1
- *
- * Copyright (C) 1999-2004 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.
- */
-
-/*
- * Authors:
- * Brian Paul
- */
-
-
-/*
- * The functions in this file are mostly related to software texture fallbacks.
- * This includes texture image transfer/packing and texel fetching.
- * Hardware drivers will likely override most of this.
- */
-
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "colormac.h"
-#include "context.h"
-#include "convolve.h"
-#include "image.h"
-#include "macros.h"
-#include "texformat.h"
-#include "teximage.h"
-#include "texstore.h"
-
-#include "s_context.h"
-#include "s_depth.h"
-#include "s_span.h"
-
-/*
- * Read an RGBA image from the frame buffer.
- * This is used by glCopyTex[Sub]Image[12]D().
- * Input: ctx - the context
- * x, y - lower left corner
- * width, height - size of region to read
- * Return: pointer to block of GL_RGBA, GLchan data.
- */
-static GLchan *
-read_color_image( GLcontext *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height )
-{
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
- GLint stride, i;
- GLchan *image, *dst;
-
- image = (GLchan *) _mesa_malloc(width * height * 4 * sizeof(GLchan));
- if (!image)
- return NULL;
-
- /* Select buffer to read from */
- _swrast_use_read_buffer(ctx);
-
- RENDER_START(swrast,ctx);
-
- dst = image;
- stride = width * 4;
- for (i = 0; i < height; i++) {
- _swrast_read_rgba_span(ctx, ctx->ReadBuffer->_ColorReadBuffer,
- width, x, y + i, (GLchan (*)[4]) dst);
- dst += stride;
- }
-
- RENDER_FINISH(swrast,ctx);
-
- /* Read from draw buffer (the default) */
- _swrast_use_draw_buffer(ctx);
-
- return image;
-}
-
-
-/*
- * As above, but read data from depth buffer.
- */
-static GLfloat *
-read_depth_image( GLcontext *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height )
-{
- struct gl_renderbuffer *rb
- = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
- SWcontext *swrast = SWRAST_CONTEXT(ctx);
- GLfloat *image, *dst;
- GLint i;
-
- image = (GLfloat *) _mesa_malloc(width * height * sizeof(GLfloat));
- if (!image)
- return NULL;
-
- RENDER_START(swrast,ctx);
-
- dst = image;
- for (i = 0; i < height; i++) {
- _swrast_read_depth_span_float(ctx, rb, width, x, y + i, dst);
- dst += width;
- }
-
- RENDER_FINISH(swrast,ctx);
-
- return image;
-}
-
-
-
-static GLboolean
-is_depth_format(GLenum format)
-{
- switch (format) {
- case GL_DEPTH_COMPONENT:
- case GL_DEPTH_COMPONENT16_SGIX:
- case GL_DEPTH_COMPONENT24_SGIX:
- case GL_DEPTH_COMPONENT32_SGIX:
- return GL_TRUE;
- default:
- return GL_FALSE;
- }
-}
-
-
-/*
- * Fallback for Driver.CopyTexImage1D().
- */
-void
-_swrast_copy_teximage1d( GLcontext *ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLint border )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- ASSERT(texObj);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
- ASSERT(texImage);
-
- ASSERT(ctx->Driver.TexImage1D);
-
- if (is_depth_format(internalFormat)) {
- /* read depth image from framebuffer */
- GLfloat *image = read_depth_image(ctx, x, y, width, 1);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
- return;
- }
-
- /* call glTexImage1D to redefine the texture */
- (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
- width, border,
- GL_DEPTH_COMPONENT, GL_FLOAT, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
- else {
- /* read RGBA image from framebuffer */
- GLchan *image = read_color_image(ctx, x, y, width, 1);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
- return;
- }
-
- /* call glTexImage1D to redefine the texture */
- (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
- width, border,
- GL_RGBA, CHAN_TYPE, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
- }
-}
-
-
-/*
- * Fallback for Driver.CopyTexImage2D().
- */
-void
-_swrast_copy_teximage2d( GLcontext *ctx, GLenum target, GLint level,
- GLenum internalFormat,
- GLint x, GLint y, GLsizei width, GLsizei height,
- GLint border )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- ASSERT(texObj);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
- ASSERT(texImage);
-
- ASSERT(ctx->Driver.TexImage2D);
-
- if (is_depth_format(internalFormat)) {
- /* read depth image from framebuffer */
- GLfloat *image = read_depth_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
- return;
- }
-
- /* call glTexImage2D to redefine the texture */
- (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
- width, height, border,
- GL_DEPTH_COMPONENT, GL_FLOAT, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
- else {
- /* read RGBA image from framebuffer */
- GLchan *image = read_color_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
- return;
- }
-
- /* call glTexImage2D to redefine the texture */
- (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
- width, height, border,
- GL_RGBA, CHAN_TYPE, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
- }
-}
-
-
-/*
- * Fallback for Driver.CopyTexSubImage1D().
- */
-void
-_swrast_copy_texsubimage1d( GLcontext *ctx, GLenum target, GLint level,
- GLint xoffset, GLint x, GLint y, GLsizei width )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- ASSERT(texObj);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
- ASSERT(texImage);
-
- ASSERT(ctx->Driver.TexImage1D);
-
- if (texImage->Format == GL_DEPTH_COMPONENT) {
- /* read depth image from framebuffer */
- GLfloat *image = read_depth_image(ctx, x, y, width, 1);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage1D");
- return;
- }
-
- /* call glTexSubImage1D to redefine the texture */
- (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
- GL_DEPTH_COMPONENT, GL_FLOAT, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
- else {
- /* read RGBA image from framebuffer */
- GLchan *image = read_color_image(ctx, x, y, width, 1);
- if (!image) {
- _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage1D" );
- return;
- }
-
- /* now call glTexSubImage1D to do the real work */
- (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
- GL_RGBA, CHAN_TYPE, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
- }
-}
-
-
-/*
- * Fallback for Driver.CopyTexSubImage2D().
- */
-void
-_swrast_copy_texsubimage2d( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- ASSERT(texObj);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
- ASSERT(texImage);
-
- ASSERT(ctx->Driver.TexImage2D);
-
- if (texImage->Format == GL_DEPTH_COMPONENT) {
- /* read depth image from framebuffer */
- GLfloat *image = read_depth_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D");
- return;
- }
-
- /* call glTexImage1D to redefine the texture */
- (*ctx->Driver.TexSubImage2D)(ctx, target, level,
- xoffset, yoffset, width, height,
- GL_DEPTH_COMPONENT, GL_FLOAT, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
- else {
- /* read RGBA image from framebuffer */
- GLchan *image = read_color_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage2D" );
- return;
- }
-
- /* now call glTexSubImage2D to do the real work */
- (*ctx->Driver.TexSubImage2D)(ctx, target, level,
- xoffset, yoffset, width, height,
- GL_RGBA, CHAN_TYPE, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
- }
-}
-
-
-/*
- * Fallback for Driver.CopyTexSubImage3D().
- */
-void
-_swrast_copy_texsubimage3d( GLcontext *ctx,
- GLenum target, GLint level,
- GLint xoffset, GLint yoffset, GLint zoffset,
- GLint x, GLint y, GLsizei width, GLsizei height )
-{
- struct gl_texture_unit *texUnit;
- struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
-
- texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- texObj = _mesa_select_tex_object(ctx, texUnit, target);
- ASSERT(texObj);
- texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
- ASSERT(texImage);
-
- ASSERT(ctx->Driver.TexImage3D);
-
- if (texImage->Format == GL_DEPTH_COMPONENT) {
- /* read depth image from framebuffer */
- GLfloat *image = read_depth_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage3D");
- return;
- }
-
- /* call glTexImage1D to redefine the texture */
- (*ctx->Driver.TexSubImage3D)(ctx, target, level,
- xoffset, yoffset, zoffset, width, height, 1,
- GL_DEPTH_COMPONENT, GL_FLOAT, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
- else {
- /* read RGBA image from framebuffer */
- GLchan *image = read_color_image(ctx, x, y, width, height);
- if (!image) {
- _mesa_error( ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage3D" );
- return;
- }
-
- /* now call glTexSubImage3D to do the real work */
- (*ctx->Driver.TexSubImage3D)(ctx, target, level,
- xoffset, yoffset, zoffset, width, height, 1,
- GL_RGBA, CHAN_TYPE, image,
- &ctx->DefaultPacking, texObj, texImage);
- _mesa_free(image);
- }
-
- /* GL_SGIS_generate_mipmap */
- if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
- _mesa_generate_mipmap(ctx, target, texUnit, texObj);
- }
-}
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