diff options
Diffstat (limited to 'mesalib/src/mesa/main/teximage.c')
| -rw-r--r-- | mesalib/src/mesa/main/teximage.c | 140 |
1 files changed, 64 insertions, 76 deletions
diff --git a/mesalib/src/mesa/main/teximage.c b/mesalib/src/mesa/main/teximage.c index 2d06f84bf..acf7187fd 100644 --- a/mesalib/src/mesa/main/teximage.c +++ b/mesalib/src/mesa/main/teximage.c @@ -58,27 +58,6 @@ /** - * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE - * elsewhere. - */ -void * -_mesa_alloc_texmemory(GLsizei bytes) -{ - return _mesa_align_malloc(bytes, 512); -} - - -/** - * Free texture memory allocated with _mesa_alloc_texmemory() - */ -void -_mesa_free_texmemory(void *m) -{ - _mesa_align_free(m); -} - - -/** * Return the simple base format for a given internal texture format. * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. * @@ -599,29 +578,6 @@ _mesa_new_texture_image( struct gl_context *ctx ) /** - * Free texture image data. - * This function is a fallback called via ctx->Driver.FreeTextureImageBuffer(). - * - * \param texImage texture image. - * - * Free the texture image data if it's not marked as client data. - */ -void -_mesa_free_texture_image_data(struct gl_context *ctx, - struct gl_texture_image *texImage) -{ - (void) ctx; - - if (texImage->Data) { - /* free the old texture data */ - _mesa_free_texmemory(texImage->Data); - } - - texImage->Data = NULL; -} - - -/** * Free a gl_texture_image and associated data. * This function is a fallback called via ctx->Driver.DeleteTextureImage(). * @@ -638,11 +594,6 @@ _mesa_delete_texture_image(struct gl_context *ctx, */ ASSERT(ctx->Driver.FreeTextureImageBuffer); ctx->Driver.FreeTextureImageBuffer( ctx, texImage ); - - ASSERT(texImage->Data == NULL); - if (texImage->ImageOffsets) - free(texImage->ImageOffsets); - free(texImage); } @@ -1084,18 +1035,12 @@ clear_teximage_fields(struct gl_texture_image *img) img->Width = 0; img->Height = 0; img->Depth = 0; - img->RowStride = 0; - if (img->ImageOffsets) { - free(img->ImageOffsets); - img->ImageOffsets = NULL; - } img->Width2 = 0; img->Height2 = 0; img->Depth2 = 0; img->WidthLog2 = 0; img->HeightLog2 = 0; img->DepthLog2 = 0; - img->Data = NULL; img->TexFormat = MESA_FORMAT_NONE; } @@ -1123,8 +1068,6 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, GLint border, GLenum internalFormat, gl_format format) { - GLint i; - ASSERT(img); ASSERT(width >= 0); ASSERT(height >= 0); @@ -1161,19 +1104,6 @@ _mesa_init_teximage_fields(struct gl_context *ctx, GLenum target, img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); - /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */ - img->RowStride = width; - /* Allocate the ImageOffsets array and initialize to typical values. - * We allocate the array for 1D/2D textures too in order to avoid special- - * case code in the texstore routines. - */ - if (img->ImageOffsets) - free(img->ImageOffsets); - img->ImageOffsets = (GLuint *) malloc(depth * sizeof(GLuint)); - for (i = 0; i < depth; i++) { - img->ImageOffsets[i] = i * width * height; - } - img->TexFormat = format; } @@ -2316,6 +2246,45 @@ _mesa_choose_texture_format(struct gl_context *ctx, return f; } +/** + * Adjust pixel unpack params and image dimensions to strip off the + * texture border. + * + * Gallium and intel don't support texture borders. They've seldem been used + * and seldom been implemented correctly anyway. + * + * \param unpackNew returns the new pixel unpack parameters + */ +static void +strip_texture_border(GLint *border, + GLint *width, GLint *height, GLint *depth, + const struct gl_pixelstore_attrib *unpack, + struct gl_pixelstore_attrib *unpackNew) +{ + assert(*border > 0); /* sanity check */ + + *unpackNew = *unpack; + + if (unpackNew->RowLength == 0) + unpackNew->RowLength = *width; + + if (depth && unpackNew->ImageHeight == 0) + unpackNew->ImageHeight = *height; + + unpackNew->SkipPixels += *border; + if (height) + unpackNew->SkipRows += *border; + if (depth) + unpackNew->SkipImages += *border; + + assert(*width >= 3); + *width = *width - 2 * *border; + if (height && *height >= 3) + *height = *height - 2 * *border; + if (depth && *depth >= 3) + *depth = *depth - 2 * *border; + *border = 0; +} /** * Common code to implement all the glTexImage1D/2D/3D functions. @@ -2328,6 +2297,8 @@ teximage(struct gl_context *ctx, GLuint dims, const GLvoid *pixels) { GLboolean error; + struct gl_pixelstore_attrib unpack_no_border; + const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); @@ -2392,6 +2363,16 @@ teximage(struct gl_context *ctx, GLuint dims, return; /* error was recorded */ } + /* Allow a hardware driver to just strip out the border, to provide + * reliable but slightly incorrect hardware rendering instead of + * rarely-tested software fallback rendering. + */ + if (border && ctx->Const.StripTextureBorder) { + strip_texture_border(&border, &width, &height, &depth, unpack, + &unpack_no_border); + unpack = &unpack_no_border; + } + if (ctx->NewState & _NEW_PIXEL) _mesa_update_state(ctx); @@ -2409,7 +2390,6 @@ teximage(struct gl_context *ctx, GLuint dims, ctx->Driver.FreeTextureImageBuffer(ctx, texImage); - ASSERT(texImage->Data == NULL); texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, internalFormat, format, type); @@ -2425,19 +2405,19 @@ teximage(struct gl_context *ctx, GLuint dims, case 1: ctx->Driver.TexImage1D(ctx, target, level, internalFormat, width, border, format, - type, pixels, &ctx->Unpack, texObj, + type, pixels, unpack, texObj, texImage); break; case 2: ctx->Driver.TexImage2D(ctx, target, level, internalFormat, width, height, border, format, - type, pixels, &ctx->Unpack, texObj, + type, pixels, unpack, texObj, texImage); break; case 3: ctx->Driver.TexImage3D(ctx, target, level, internalFormat, width, height, depth, border, format, - type, pixels, &ctx->Unpack, texObj, + type, pixels, unpack, texObj, texImage); break; default: @@ -2548,7 +2528,6 @@ _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) } else { ctx->Driver.FreeTextureImageBuffer(ctx, texImage); - ASSERT(texImage->Data == NULL); ctx->Driver.EGLImageTargetTexture2D(ctx, target, texObj, texImage, image); @@ -2734,6 +2713,16 @@ copyteximage(struct gl_context *ctx, GLuint dims, texObj = _mesa_get_current_tex_object(ctx, target); + if (border && ctx->Const.StripTextureBorder) { + x += border; + width -= border * 2; + if (dims == 2) { + y += border; + height -= border * 2; + } + border = 0; + } + _mesa_lock_texture(ctx, texObj); { texImage = _mesa_get_tex_image(ctx, texObj, target, level); @@ -3370,7 +3359,6 @@ compressedteximage(struct gl_context *ctx, GLuint dims, gl_format texFormat; ctx->Driver.FreeTextureImageBuffer(ctx, texImage); - ASSERT(texImage->Data == NULL); texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, internalFormat, GL_NONE, |