mesa: document sRGBDecode field

[mesa.git] / src / mesa / main / texgetimage.c

diff --git a/src/mesa/main/texgetimage.c b/src/mesa/main/texgetimage.c
index 30d1062a4154d61deab8d05168392f865940df34..da610798e1232822da5eb0d6e7416731bc68197e 100644 (file)
--- a/src/mesa/main/texgetimage.c
+++ b/src/mesa/main/texgetimage.c
@@ -35,6 +35,9 @@
 #include "context.h"
 #include "formats.h"
 #include "image.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "pack.h"
 #include "texgetimage.h"
 #include "teximage.h"
 
@@ -119,10 +122,15 @@ get_tex_depth(struct gl_context *ctx, GLuint dimensions,
    const GLint height = texImage->Height;
    const GLint depth = texImage->Depth;
    GLint img, row, col;
+   GLfloat *depthRow = (GLfloat *) malloc(width * sizeof(GLfloat));
+
+   if (!depthRow) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+      return;
+   }
 
    for (img = 0; img < depth; img++) {
       for (row = 0; row < height; row++) {
-         GLfloat depthRow[MAX_WIDTH];
          void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
                                           width, height, format, type,
                                           img, row, 0);
@@ -134,6 +142,8 @@ get_tex_depth(struct gl_context *ctx, GLuint dimensions,
          _mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack);
       }
    }
+
+   free(depthRow);
 }
 
 
@@ -243,6 +253,12 @@ get_tex_srgb(struct gl_context *ctx, GLuint dimensions,
    const GLint depth = texImage->Depth;
    const GLbitfield transferOps = 0x0;
    GLint img, row;
+   GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
+
+   if (!rgba) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+      return;
+   }
 
    for (img = 0; img < depth; img++) {
       for (row = 0; row < height; row++) {
@@ -250,7 +266,6 @@ get_tex_srgb(struct gl_context *ctx, GLuint dimensions,
                                           width, height, format, type,
                                           img, row, 0);
 
-         GLfloat rgba[MAX_WIDTH][4];
          GLint col;
 
          /* convert row to RGBA format */
@@ -278,6 +293,8 @@ get_tex_srgb(struct gl_context *ctx, GLuint dimensions,
                                     &ctx->Pack, transferOps);
       }
    }
+
+   free(rgba);
 }
 
 
@@ -313,13 +330,18 @@ get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
     */
    GLbitfield transferOps = 0x0;
    GLint img, row;
+   GLfloat (*rgba)[4] = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
+
+   if (!rgba) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+      return;
+   }
 
    for (img = 0; img < depth; img++) {
       for (row = 0; row < height; row++) {
          void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
                                           width, height, format, type,
                                           img, row, 0);
-         GLfloat rgba[MAX_WIDTH][4];
          GLint col;
          GLenum dataType = _mesa_get_format_datatype(texImage->TexFormat);
 
@@ -363,6 +385,8 @@ get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
                                     &ctx->Pack, transferOps);
       }
    }
+
+   free(rgba);
 }
 
 
@@ -410,11 +434,21 @@ get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type, GLvoid *pixel
                type == GL_UNSIGNED_BYTE) {
          memCopy = GL_TRUE;
       }
+      else if (texImage->TexFormat == MESA_FORMAT_L16 &&
+               format == GL_LUMINANCE &&
+               type == GL_UNSIGNED_SHORT) {
+         memCopy = GL_TRUE;
+      }
       else if (texImage->TexFormat == MESA_FORMAT_A8 &&
                format == GL_ALPHA &&
                type == GL_UNSIGNED_BYTE) {
          memCopy = GL_TRUE;
       }
+      else if (texImage->TexFormat == MESA_FORMAT_A16 &&
+               format == GL_ALPHA &&
+               type == GL_UNSIGNED_SHORT) {
+         memCopy = GL_TRUE;
+      }
    }
 
    if (memCopy) {