Module: Mesa Branch: master Commit: 3e5a35269b201d25e2a63743d8d4b1b4311b6fb0 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3e5a35269b201d25e2a63743d8d4b1b4311b6fb0
Author: Brian Paul <[email protected]> Date: Sat Sep 19 16:32:42 2009 -0600 mesa: meta functions for glCopyColorTable, glCopyConvolutionFilter, etc --- src/mesa/drivers/common/meta.c | 122 ++++++++++++++++++++++++++++++++++++++++ src/mesa/drivers/common/meta.h | 19 ++++++ 2 files changed, 141 insertions(+), 0 deletions(-) diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c index b1465d1..5857feb 100644 --- a/src/mesa/drivers/common/meta.c +++ b/src/mesa/drivers/common/meta.c @@ -38,6 +38,7 @@ #include "main/blend.h" #include "main/bufferobj.h" #include "main/buffers.h" +#include "main/colortab.h" #include "main/convolve.h" #include "main/depth.h" #include "main/enable.h" @@ -2365,3 +2366,124 @@ _mesa_meta_CopyTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, copy_tex_sub_image(ctx, 3, target, level, xoffset, yoffset, zoffset, x, y, width, height); } + + +void +_mesa_meta_CopyColorTable(GLcontext *ctx, + GLenum target, GLenum internalformat, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorTable(target, internalformat, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyColorSubTable(GLcontext *ctx,GLenum target, GLsizei start, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyColorSubTable"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ColorSubTable(target, start, width, GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target, + GLenum internalFormat, + GLint x, GLint y, GLsizei width) +{ + GLfloat *buf; + + buf = (GLfloat *) _mesa_malloc(width * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyConvolutionFilter2D"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + _mesa_update_state(ctx); + ctx->Driver.ReadPixels(ctx, x, y, width, 1, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ConvolutionFilter1D(target, internalFormat, width, + GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} + + +void +_mesa_meta_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height) +{ + GLfloat *buf; + + if (!ctx->ReadBuffer->_ColorReadBuffer) { + /* no readbuffer - OK */ + return; + } + + buf = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); + if (!buf) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyConvolutionFilter2D"); + return; + } + + /* + * Read image from framebuffer (disable pixel transfer ops) + */ + _mesa_meta_begin(ctx, META_PIXEL_STORE | META_PIXEL_TRANSFER); + _mesa_update_state(ctx); + + ctx->Driver.ReadPixels(ctx, x, y, width, height, + GL_RGBA, GL_FLOAT, &ctx->Pack, buf); + + _mesa_ConvolutionFilter2D(target, internalFormat, width, height, + GL_RGBA, GL_FLOAT, buf); + + _mesa_meta_end(ctx); + + _mesa_free(buf); +} diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h index 9f7100f..c306717 100644 --- a/src/mesa/drivers/common/meta.h +++ b/src/mesa/drivers/common/meta.h @@ -91,5 +91,24 @@ _mesa_meta_CopyTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, GLint x, GLint y, GLsizei width, GLsizei height); +extern void +_mesa_meta_CopyColorTable(GLcontext *ctx, + GLenum target, GLenum internalformat, + GLint x, GLint y, GLsizei width); + +extern void +_mesa_meta_CopyColorSubTable(GLcontext *ctx,GLenum target, GLsizei start, + GLint x, GLint y, GLsizei width); + +extern void +_mesa_meta_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target, + GLenum internalFormat, + GLint x, GLint y, GLsizei width); + +extern void +_mesa_meta_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target, + GLenum internalFormat, GLint x, GLint y, + GLsizei width, GLsizei height); + #endif /* META_H */ _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
