r300g: Update comments, asserts, indents in r300_texture.

[mesa.git] / src / gallium / drivers / r300 / r300_texture.c

diff --git a/src/gallium/drivers/r300/r300_texture.c b/src/gallium/drivers/r300/r300_texture.c
index ce60ded7caf929db182207dc1833476653ec1b07..3c8ff24e17d2b2f03d44375351569f373f19399a 100644 (file)
--- a/src/gallium/drivers/r300/r300_texture.c
+++ b/src/gallium/drivers/r300/r300_texture.c
@@ -20,6 +20,12 @@
  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
 
+#include "pipe/p_screen.h"
+
+#include "util/u_math.h"
+#include "util/u_memory.h"
+
+#include "r300_context.h"
 #include "r300_texture.h"
 
 static void r300_setup_texture_state(struct r300_texture* tex)
@@ -36,16 +42,16 @@ static void r300_setup_texture_state(struct r300_texture* tex)
     /* XXX */
     state->format1 = r300_translate_texformat(pt->format);
     if (pt->target == PIPE_TEXTURE_CUBE) {
-       state->format1 |= R300_TX_FORMAT_CUBIC_MAP;
+        state->format1 |= R300_TX_FORMAT_CUBIC_MAP;
     }
     if (pt->target == PIPE_TEXTURE_3D) {
-       state->format1 |= R300_TX_FORMAT_3D;
+        state->format1 |= R300_TX_FORMAT_3D;
     }
 
     state->format2 = (r300_texture_get_stride(tex, 0) / pt->block.size) - 1;
 
-    /* Assume (somewhat foolishly) that oversized textures will
-     * not be permitted by the state tracker. */
+    /* Don't worry about accidentally setting this bit on non-r500;
+     * the kernel should catch it. */
     if (pt->width[0] > 2048) {
         state->format2 |= R500_TXWIDTH_BIT11;
     }
@@ -67,7 +73,8 @@ unsigned r300_texture_get_stride(struct r300_texture* tex, unsigned level)
         return tex->stride_override;
 
     if (level > tex->tex.last_level) {
-        debug_printf("%s: level (%u) > last_level (%u)\n", __FUNCTION__, level, tex->tex.last_level);
+        debug_printf("%s: level (%u) > last_level (%u)\n", __FUNCTION__,
+            level, tex->tex.last_level);
         return 0;
     }
 
@@ -90,11 +97,6 @@ static void r300_setup_miptree(struct r300_texture* tex)
         base->nblocksx[i] = pf_get_nblocksx(&base->block, base->width[i]);
         base->nblocksy[i] = pf_get_nblocksy(&base->block, base->height[i]);
 
-        /* Radeons enjoy things in multiples of 64.
-         *
-         * XXX
-         * POT, uncompressed, unmippmapped textures can be aligned to 32,
-         * instead of 64. */
         stride = r300_texture_get_stride(tex, i);
         size = stride * base->nblocksy[i] * base->depth[i];
 
@@ -189,9 +191,7 @@ static struct pipe_texture*
 {
     struct r300_texture* tex;
 
-    /* XXX we should start doing mips now... */
     if (base->target != PIPE_TEXTURE_2D ||
-        base->last_level != 0 ||
         base->depth[0] != 1) {
         return NULL;
     }
@@ -207,7 +207,6 @@ static struct pipe_texture*
 
     tex->stride_override = *stride;
 
-    /* XXX */
     r300_setup_texture_state(tex);
 
     pipe_buffer_reference(&tex->buffer, buffer);
@@ -215,6 +214,55 @@ static struct pipe_texture*
     return (struct pipe_texture*)tex;
 }
 
+static struct pipe_video_surface *
+r300_video_surface_create(struct pipe_screen *screen,
+                          enum pipe_video_chroma_format chroma_format,
+                          unsigned width, unsigned height)
+{
+    struct r300_video_surface *r300_vsfc;
+    struct pipe_texture template;
+
+    assert(screen);
+    assert(width && height);
+
+    r300_vsfc = CALLOC_STRUCT(r300_video_surface);
+    if (!r300_vsfc)
+       return NULL;
+
+    pipe_reference_init(&r300_vsfc->base.reference, 1);
+    r300_vsfc->base.screen = screen;
+    r300_vsfc->base.chroma_format = chroma_format;
+    r300_vsfc->base.width = width;
+    r300_vsfc->base.height = height;
+
+    memset(&template, 0, sizeof(struct pipe_texture));
+    template.target = PIPE_TEXTURE_2D;
+    template.format = PIPE_FORMAT_X8R8G8B8_UNORM;
+    template.last_level = 0;
+    template.width[0] = util_next_power_of_two(width);
+    template.height[0] = util_next_power_of_two(height);
+    template.depth[0] = 1;
+    pf_get_block(template.format, &template.block);
+    template.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER |
+                         PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+    r300_vsfc->tex = screen->texture_create(screen, &template);
+    if (!r300_vsfc->tex)
+    {
+        FREE(r300_vsfc);
+        return NULL;
+    }
+
+    return &r300_vsfc->base;
+}
+
+static void r300_video_surface_destroy(struct pipe_video_surface *vsfc)
+{
+    struct r300_video_surface *r300_vsfc = r300_video_surface(vsfc);
+    pipe_texture_reference(&r300_vsfc->tex, NULL);
+    FREE(r300_vsfc);
+}
+
 void r300_init_screen_texture_functions(struct pipe_screen* screen)
 {
     screen->texture_create = r300_texture_create;
@@ -222,6 +270,9 @@ void r300_init_screen_texture_functions(struct pipe_screen* screen)
     screen->get_tex_surface = r300_get_tex_surface;
     screen->tex_surface_destroy = r300_tex_surface_destroy;
     screen->texture_blanket = r300_texture_blanket;
+
+    screen->video_surface_create = r300_video_surface_create;
+    screen->video_surface_destroy= r300_video_surface_destroy;
 }
 
 boolean r300_get_texture_buffer(struct pipe_texture* texture,