/**
+ * Return 0 for GL_TEXTURE_CUBE_MAP_POSITIVE_X,
+ * 1 for GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
+ * etc.
+ * XXX duplicated from main/teximage.c
+ */
+static uint
+texture_face(GLenum target)
+{
+ if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
+ target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
+ return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ else
+ return 0;
+}
+
+
+
+/**
+ * Do a CopyTexSubImage operation by mapping the source region and
+ * dest region and copying/converting pixels.
+ */
+static void
+fallback_copy_texsubimage(GLcontext *ctx,
+ GLenum target,
+ GLint level,
+ struct st_renderbuffer *strb,
+ struct st_texture_image *stImage,
+ GLenum baseFormat,
+ GLint destX, GLint destY, GLint destZ,
+ GLint srcX, GLint srcY,
+ GLsizei width, GLsizei height)
+{
+ struct pipe_context *pipe = ctx->st->pipe;
+ const uint face = texture_face(target);
+ struct pipe_mipmap_tree *mt = stImage->mt;
+ struct pipe_surface *src_surf, *dest_surf;
+ GLfloat *data;
+
+ src_surf = strb->surface;
+
+ dest_surf = pipe->get_tex_surface(pipe, mt,
+ face, level, destZ);
+
+ data = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
+ src_surf->get_tile(src_surf, srcX, srcY, width, height, data);
+
+ /* process pixels */
+
+ dest_surf->put_tile(dest_surf, destX, destY, width, height, data);
+
+ free(data);
+}
+
+
+
+
+/**
* Do a CopyTex[Sub]Image using an optimized hardware (blit) path.
* Note that the region to copy has already been clip tested.
* \return GL_TRUE if success, GL_FALSE if failure (use a fallback)
*/
-static GLboolean
+static void
do_copy_texsubimage(GLcontext *ctx,
- struct st_texture_image *stImage,
- GLenum baseFormat,
- GLint destX, GLint destY,
- GLint srcX, GLint srcY, GLsizei width, GLsizei height)
+ GLenum target, GLint level,
+ GLint destX, GLint destY, GLint destZ,
+ GLint srcX, GLint srcY,
+ GLsizei width, GLsizei height)
{
+ struct gl_texture_unit *texUnit =
+ &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+ struct gl_texture_object *texObj =
+ _mesa_select_tex_object(ctx, texUnit, target);
+ struct gl_texture_image *texImage =
+ _mesa_select_tex_image(ctx, texObj, target, level);
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ GLenum baseFormat = texImage->InternalFormat;
struct gl_framebuffer *fb = ctx->ReadBuffer;
struct st_renderbuffer *strb;
struct pipe_context *pipe = ctx->st->pipe;
uint dest_offset, src_offset;
uint dest_format, src_format;
+ (void) texImage;
+
/* determine if copying depth or color data */
if (baseFormat == GL_DEPTH_COMPONENT) {
strb = st_renderbuffer(fb->_DepthBuffer);
assert(strb->surface);
assert(stImage->mt);
-#if 00 /* XXX FIX flush/locking */
- intelFlush(ctx);
- /* XXX still need the lock ? */
- LOCK_HARDWARE(intel);
-#endif
-
src_format = strb->surface->format;
dest_format = stImage->mt->format;
- if (src_format != dest_format)
- return GL_FALSE;
src_region = strb->surface->region;
dest_region = stImage->mt->region;
- if (!src_region || !dest_region)
- return GL_FALSE;
- if (src_region->cpp != dest_region->cpp)
- return GL_FALSE;
- src_offset = 0;
- dest_offset = st_miptree_image_offset(stImage->mt,
- stImage->face,
- stImage->level);
+ if (src_format == dest_format &&
+ /* XXX also check GL pixel transfer ops here */
+ src_region &&
+ dest_region &&
+ src_region->cpp == dest_region->cpp) {
+ /* do blit-style copy */
+ src_offset = 0;
+ dest_offset = st_miptree_image_offset(stImage->mt,
+ stImage->face,
+ stImage->level);
+
+ /* XXX may need to invert image depending on window
+ * vs. user-created FBO
+ */
- /* XXX may need to invert image depending on window vs. user-created FBO */
+#if 00 /* XXX FIX flush/locking */
+ intelFlush(ctx);
+ /* XXX still need the lock ? */
+ LOCK_HARDWARE(intel);
+#endif
#if 0
- /* A bit of fiddling to get the blitter to work with -ve
- * pitches. But we get a nice inverted blit this way, so it's
- * worth it:
- */
- intelEmitCopyBlit(intel,
- stImage->mt->cpp,
- -src->pitch,
- src->buffer,
- src->height * src->pitch * src->cpp,
- stImage->mt->pitch,
- stImage->mt->region->buffer,
- dest_offset,
- x, y + height, dstx, dsty, width, height,
- GL_COPY); /* ? */
- intel_batchbuffer_flush(intel->batch);
+ /* A bit of fiddling to get the blitter to work with -ve
+ * pitches. But we get a nice inverted blit this way, so it's
+ * worth it:
+ */
+ intelEmitCopyBlit(intel,
+ stImage->mt->cpp,
+ -src->pitch,
+ src->buffer,
+ src->height * src->pitch * src->cpp,
+ stImage->mt->pitch,
+ stImage->mt->region->buffer,
+ dest_offset,
+ x, y + height, dstx, dsty, width, height,
+ GL_COPY); /* ? */
+ intel_batchbuffer_flush(intel->batch);
#else
- pipe->region_copy(pipe,
- /* dest */
- dest_region,
- dest_offset,
- destX, destY,
- /* src */
- src_region,
- src_offset,
- srcX, srcY,
- /* size */
- width, height);
+ pipe->region_copy(pipe,
+ /* dest */
+ dest_region,
+ dest_offset,
+ destX, destY,
+ /* src */
+ src_region,
+ src_offset,
+ srcX, srcY,
+ /* size */
+ width, height);
#endif
#if 0
- UNLOCK_HARDWARE(intel);
+ UNLOCK_HARDWARE(intel);
#endif
+ }
+ else {
+ fallback_copy_texsubimage(ctx, target, level,
+ strb, stImage, baseFormat,
+ destX, destY, destZ,
+ srcX, srcY, width, height);
+ }
+
#if 0
/* GL_SGIS_generate_mipmap -- this can be accelerated now.
}
#endif
- return GL_TRUE;
}
+
static void
st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
GLenum internalFormat,
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
+#if 0
if (border)
goto fail;
+#endif
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
GL_RGBA, CHAN_TYPE, NULL,
&ctx->DefaultPacking, texObj, texImage);
- if (!do_copy_texsubimage(ctx,
- st_texture_image(texImage),
- internalFormat, 0, 0, x, y, width, 1))
- goto fail;
-
- return;
-
- fail:
-#if 0
- _swrast_copy_teximage1d(ctx, target, level, internalFormat, x, y,
- width, border);
-#endif
- ;
+ do_copy_texsubimage(ctx, target, level,
+ 0, 0, 0,
+ x, y, width, 1);
}
struct gl_texture_image *texImage =
_mesa_select_tex_image(ctx, texObj, target, level);
+#if 0
if (border)
goto fail;
+#endif
/* Setup or redefine the texture object, mipmap tree and texture
* image. Don't populate yet.
&ctx->DefaultPacking, texObj, texImage);
- if (!do_copy_texsubimage(ctx,
- st_texture_image(texImage),
- internalFormat, 0, 0, x, y, width, height))
- goto fail;
-
- return;
-
- fail:
-#if 0
- _swrast_copy_teximage2d(ctx, target, level, internalFormat, x, y,
- width, height, border);
-#endif
- assert(0);
+ do_copy_texsubimage(ctx, target, level,
+ 0, 0, 0,
+ x, y, width, height);
}
st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
GLint xoffset, GLint x, GLint y, GLsizei width)
{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
- const GLenum baseFormat = texImage->TexFormat->BaseFormat;
-
- /* XXX need to check <border> as in above function? */
-
- /* Need to check texture is compatible with source format.
- */
-
- if (!do_copy_texsubimage(ctx,
- st_texture_image(texImage),
- baseFormat, xoffset, 0, x, y, width, 1)) {
-#if 0
- _swrast_copy_texsubimage1d(ctx, target, level, xoffset, x, y, width);
-#endif
- assert(0);
- }
+ const GLint yoffset = 0, zoffset = 0;
+ const GLsizei height = 1;
+ do_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
}
GLint xoffset, GLint yoffset,
GLint x, GLint y, GLsizei width, GLsizei height)
{
- struct gl_texture_unit *texUnit =
- &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
- struct gl_texture_object *texObj =
- _mesa_select_tex_object(ctx, texUnit, target);
- struct gl_texture_image *texImage =
- _mesa_select_tex_image(ctx, texObj, target, level);
- GLenum internalFormat = texImage->InternalFormat;
-
+ const GLint zoffset = 0;
+ do_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
+}
- /* Need to check texture is compatible with source format.
- */
- if (!do_copy_texsubimage(ctx,
- st_texture_image(texImage),
- internalFormat,
- xoffset, yoffset, x, y, width, height)) {
-#if 0
- _swrast_copy_texsubimage2d(ctx, target, level,
- xoffset, yoffset, x, y, width, height);
-#endif
- assert(0);
- }
+static void
+st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint x, GLint y, GLsizei width, GLsizei height)
+{
+ do_copy_texsubimage(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ x, y, width, height);
}
functions->CopyTexImage2D = st_CopyTexImage2D;
functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
+ functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
+
functions->GetTexImage = st_GetTexImage;
/* compressed texture functions */
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