diff options
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.c | 430 |
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); - } -} |