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-rw-r--r--src/mesa/drivers/glide/fxddtex.c108
1 files changed, 100 insertions, 8 deletions
diff --git a/src/mesa/drivers/glide/fxddtex.c b/src/mesa/drivers/glide/fxddtex.c
index 5e47644e2e..99af41df5d 100644
--- a/src/mesa/drivers/glide/fxddtex.c
+++ b/src/mesa/drivers/glide/fxddtex.c
@@ -1025,6 +1025,40 @@ PrintTexture(int w, int h, int c, const GLubyte * data)
}
+static const struct gl_texture_format *
+choose_format(GLenum format, GLenum type)
+{
+ if (type == CHAN_TYPE) {
+ switch (format) {
+ case GL_ALPHA:
+ return &_mesa_texformat_alpha;
+ case GL_LUMINANCE:
+ return &_mesa_texformat_luminance;
+ case GL_LUMINANCE_ALPHA:
+ return &_mesa_texformat_luminance_alpha;
+ case GL_INTENSITY:
+ return &_mesa_texformat_intensity;
+ case GL_RGB:
+ return &_mesa_texformat_rgb;
+ case GL_RGBA:
+ return &_mesa_texformat_rgba;
+ case GL_COLOR_INDEX:
+ return &_mesa_texformat_color_index;
+ default:
+ _mesa_problem(NULL, "Unexpected CHAN format in choose_format\n");
+ return NULL;
+ }
+ }
+ else if (format == GL_DEPTH_COMPONENT && type == GL_FLOAT) {
+ return &_mesa_texformat_depth_component;
+ }
+ else {
+ _mesa_problem(NULL, "Unexpected format/type in choose_format\n");
+ return NULL;
+ }
+}
+
+
void
fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
GLint internalFormat, GLint width, GLint height, GLint border,
@@ -1170,9 +1204,11 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
fxTexInvalidate(ctx, texObj);
/* store the texture image */
- /* XXX check for image rescale */
- if (ctx->_ImageTransferState) {
- success = GL_FALSE; /* Can't do image transfer ops here */
+ if (ctx->_ImageTransferState ||
+ mml->width != width ||
+ mml->height != height) {
+ /* Need to image transfer ops or image rescale */
+ success = GL_FALSE;
}
else {
success = _mesa_convert_texsubimage2d(mesaTexFormat->IntFormat,
@@ -1207,8 +1243,31 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
0, /* dstImageStride */
format, type, pixels, packing /* src info */ );
- /* this conversion better work! */
- success = _mesa_convert_texsubimage2d(mesaTexFormat->IntFormat,
+ if (mml->width != width || mml->height != height) {
+ /* Upscale image to accomodate Glide's image aspect limitations. */
+ const struct gl_texture_format *texFormat
+ = choose_format(simpleFormat, CHAN_TYPE);
+ GLvoid *rescaledImage = MALLOC(mml->width * mml->height
+ * texFormat->TexelBytes);
+ if (!rescaledImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
+ return;
+ }
+ _mesa_rescale_teximage2d(texFormat,
+ width, height, mml->width, mml->height,
+ tempImage, rescaledImage);
+ success = _mesa_convert_texsubimage2d(mesaTexFormat->IntFormat,
+ 0, 0, /* xoffset, yoffset */
+ mml->width, mml->height,
+ mml->width, /* destImageWidth */
+ simpleFormat, /* source format */
+ CHAN_TYPE, /* source type */
+ &_mesa_native_packing,
+ rescaledImage, texImage->Data);
+ FREE(rescaledImage);
+ }
+ else {
+ success = _mesa_convert_texsubimage2d(mesaTexFormat->IntFormat,
0, 0, /* xoffset, yoffset */
mml->width, mml->height,
mml->width, /* destImageWidth */
@@ -1216,6 +1275,8 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
CHAN_TYPE, /* source type */
&_mesa_native_packing,
tempImage, texImage->Data);
+ }
+ /* the conversion had better of worked! */
assert(success);
FREE(tempImage);
}
@@ -1259,7 +1320,9 @@ fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
assert(texImage->Format);
/* XXX check for image rescale */
- if (ctx->_ImageTransferState) {
+ if (ctx->_ImageTransferState ||
+ texImage->Width != mml->width ||
+ texImage->Height != mml->height) {
success = GL_FALSE;
}
else {
@@ -1296,14 +1359,43 @@ fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
0, /* dstImageStride */
format, type, pixels, packing /* src info */ );
- /* this conversion better work! */
- success = _mesa_convert_texsubimage2d(texImage->TexFormat->IntFormat,
+ if (texImage->Width != mml->width || texImage->Height != mml->height) {
+ /* Upscale image to accomodate Glide's image aspect limitations. */
+ const GLint wScale = mml->width / texImage->Width;
+ const GLint hScale = mml->height / texImage->Height;
+ const GLint newWidth = width * wScale;
+ const GLint newHeight = height *hScale;
+ GLvoid *rescaledImage = MALLOC(newWidth * newHeight
+ * texImage->TexFormat->TexelBytes);
+ assert(mml->width >= texImage->Width);
+ assert(mml->height >= texImage->Height);
+ if (!rescaledImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
+ return;
+ }
+ _mesa_rescale_teximage2d(texImage->TexFormat,
+ width, height, newWidth, newHeight,
+ tempImage, rescaledImage);
+ success = _mesa_convert_texsubimage2d(texImage->TexFormat->IntFormat,
+ xoffset * wScale, yoffset * hScale,
+ newWidth, newHeight,
+ mml->width, /* destImageWidth */
+ simpleFormat, /* source format */
+ CHAN_TYPE, /* source type */
+ &_mesa_native_packing,
+ rescaledImage, texImage->Data);
+ FREE(rescaledImage);
+ }
+ else {
+ success = _mesa_convert_texsubimage2d(texImage->TexFormat->IntFormat,
xoffset, yoffset,
width, height,
mml->width,
simpleFormat, CHAN_TYPE,
&_mesa_native_packing,
tempImage, texImage->Data);
+ }
+ /* the conversion had better of worked! */
assert(success);
FREE(tempImage);
}