From 5a0d3dc7b39c041a373cb0389bc3563c87ff6c81 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 31 Aug 2000 15:24:39 +0000 Subject: convolution for glTexImage[123]D now works --- src/mesa/main/teximage.c | 77 ++++++++++++++++++++++++++---------------------- 1 file changed, 42 insertions(+), 35 deletions(-) (limited to 'src') diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c index e643bfd60a..b985ee4b1a 100644 --- a/src/mesa/main/teximage.c +++ b/src/mesa/main/teximage.c @@ -1,4 +1,4 @@ -/* $Id: teximage.c,v 1.42 2000/08/30 18:22:28 brianp Exp $ */ +/* $Id: teximage.c,v 1.43 2000/08/31 15:24:39 brianp Exp $ */ /* * Mesa 3-D graphics library @@ -684,16 +684,27 @@ adjust_texture_size_for_convolution(const GLcontext *ctx, GLuint dimensions, /* * Called by glTexImage[123]D. Fill in a texture image with data given * by the client. All pixel transfer and unpack modes are handled here. + * Input: dimensions (1, 2, or 3) + * texImage - destination texture image (we'll malloc the memory) + * width, height, depth - size of source image + * srcFormat, srcType - source image format and type + * pixels - source image data + * srcPacking - source image packing parameters + * * NOTE: All texture image parameters should have already been error checked. + * + * NOTE: the texImage dimensions and source image dimensions must be correct + * with respect to convolution with border mode = reduce. */ static void make_texture_image( GLcontext *ctx, GLuint dimensions, struct gl_texture_image *texImage, + GLint width, GLint height, GLint depth, GLenum srcFormat, GLenum srcType, const GLvoid *pixels, const struct gl_pixelstore_attrib *srcPacking) { GLint components, numPixels; - GLint internalFormat, width, height, depth, border; + GLint internalFormat, border; ASSERT(ctx); ASSERT(texImage); @@ -702,9 +713,6 @@ make_texture_image( GLcontext *ctx, GLuint dimensions, ASSERT(srcPacking); internalFormat = texImage->IntFormat; - width = texImage->Width; - height = texImage->Height; - depth = texImage->Depth; border = texImage->Border; components = components_in_intformat(internalFormat); @@ -790,38 +798,38 @@ make_texture_image( GLcontext *ctx, GLuint dimensions, /* color index texture */ const GLint destBytesPerRow = width * components * sizeof(GLubyte); const GLenum dstType = GL_UNSIGNED_BYTE; - GLubyte *dest = texImage->Data; + GLubyte *destTex = texImage->Data; GLint img, row; for (img = 0; img < depth; img++) { for (row = 0; row < height; row++) { const GLvoid *srcAddr = _mesa_image_address(srcPacking, pixels, width, height, srcFormat, srcType, img, row, 0); - _mesa_unpack_index_span(ctx, width, dstType, dest, + _mesa_unpack_index_span(ctx, width, dstType, destTex, srcType, srcAddr, srcPacking, ctx->ImageTransferState); - dest += destBytesPerRow; + destTex += destBytesPerRow; } } } else { /* regular, color texture */ - const GLint destBytesPerRow = width * components * sizeof(GLubyte); + GLint destBytesPerRow; const GLenum dstFormat = texImage->Format; - GLubyte *dest = texImage->Data; + GLubyte *destTex = texImage->Data; GLint img, row; - GLint w = width, h = height; + GLint convWidth = width, convHeight = height; if ((dimensions == 1 && ctx->Pixel.Convolution1DEnabled) || (dimensions >= 2 && (ctx->Pixel.Convolution2DEnabled || ctx->Pixel.Separable2DEnabled) )) { GLfloat *tmpImage, *convImage; - tmpImage = (GLfloat *) MALLOC(width * height * sizeof(GLfloat)); + tmpImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat)); if (!tmpImage) { gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); return; } - convImage = (GLfloat *) MALLOC(width * height * sizeof(GLfloat)); + convImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat)); if (!convImage) { gl_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); FREE(tmpImage); @@ -844,34 +852,33 @@ make_texture_image( GLcontext *ctx, GLuint dimensions, /* convolve */ if (dimensions == 1) { - if (ctx->Pixel.Convolution1DEnabled) { - _mesa_convolve_1d_image(ctx, &w, tmpImage, convImage); - } + ASSERT(ctx->Pixel.Convolution1DEnabled); + _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage); } else { if (ctx->Pixel.Convolution2DEnabled) { - _mesa_convolve_2d_image(ctx, &w, &h, tmpImage, convImage); + _mesa_convolve_2d_image(ctx, &convWidth, &convHeight, + tmpImage, convImage); } else { ASSERT(ctx->Pixel.Separable2DEnabled); - _mesa_convolve_sep_image(ctx, &w, &h, tmpImage, convImage); + _mesa_convolve_sep_image(ctx, &convWidth, &convHeight, + tmpImage, convImage); } } - /* transfer ops after convolution */ + /* packing and transfer ops after convolution */ srcf = convImage; - for (row = 0; row < h; row++) { - GLvoid *dest; - dest = _mesa_image_address(&_mesa_native_packing, pixels, - w, h, GL_RGBA, GL_UNSIGNED_BYTE, - 0, row, 0); - _mesa_pack_float_rgba_span(ctx, w, + destBytesPerRow = convWidth * components * sizeof(GLubyte); + for (row = 0; row < convHeight; row++) { + _mesa_pack_float_rgba_span(ctx, convWidth, (const GLfloat (*)[4]) srcf, dstFormat, GL_UNSIGNED_BYTE, - dest, &_mesa_native_packing, + destTex, &_mesa_native_packing, ctx->ImageTransferState & IMAGE_POST_CONVOLUTION_BITS); - srcf += w * 4; + srcf += convWidth * 4; + destTex += destBytesPerRow; } } @@ -884,10 +891,10 @@ make_texture_image( GLcontext *ctx, GLuint dimensions, for (row = 0; row < height; row++) { const GLvoid *srcAddr = _mesa_image_address(srcPacking, pixels, width, height, srcFormat, srcType, img, row, 0); - _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, dest, + _mesa_unpack_ubyte_color_span(ctx, width, dstFormat, destTex, srcFormat, srcType, srcAddr, srcPacking, ctx->ImageTransferState); - dest += destBytesPerRow; + destTex += destBytesPerRow; } } } @@ -1587,8 +1594,8 @@ _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, } if (retain || !success) { /* make internal copy of the texture image */ - make_texture_image(ctx, 1, texImage, format, type, - pixels, &ctx->Unpack); + make_texture_image(ctx, 1, texImage, width, 1, 1, + format, type, pixels, &ctx->Unpack); if (!success && ctx->Driver.TexImage1D) { /* let device driver try to use unpacked image */ (*ctx->Driver.TexImage1D)( ctx, target, level, texImage->Format, @@ -1718,8 +1725,8 @@ _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, } if (retain || !success) { /* make internal copy of the texture image */ - make_texture_image(ctx, 2, texImage, format, type, - pixels, &ctx->Unpack); + make_texture_image(ctx, 2, texImage, width, height, 1, + format, type, pixels, &ctx->Unpack); if (!success && ctx->Driver.TexImage2D) { /* let device driver try to use unpacked image */ (*ctx->Driver.TexImage2D)( ctx, target, level, texImage->Format, @@ -1854,8 +1861,8 @@ _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, } if (retain || !success) { /* make internal copy of the texture image */ - make_texture_image(ctx, 3, texImage, format, type, - pixels, &ctx->Unpack); + make_texture_image(ctx, 3, texImage, width, height, depth, + format, type, pixels, &ctx->Unpack); if (!success && ctx->Driver.TexImage3D) { /* let device driver try to use unpacked image */ (*ctx->Driver.TexImage3D)( ctx, target, level, texImage->Format, -- cgit v1.2.3