st/mesa: respect force_s3tc_enable environment variable

[mesa.git] / src / mesa / state_tracker / st_cb_drawpixels.c

diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index f25656acb49da42ab6ce4704d8fa4bc59df1caf4..1d908c0317a49c431d7d9fd9fdec2b996795b3ba 100644 (file)
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -281,11 +281,36 @@ internal_format(struct gl_context *ctx, GLenum format, GLenum type)
 {
    switch (format) {
    case GL_DEPTH_COMPONENT:
-      return GL_DEPTH_COMPONENT;
+      switch (type) {
+      case GL_UNSIGNED_SHORT:
+         return GL_DEPTH_COMPONENT16;
+
+      case GL_UNSIGNED_INT:
+         return GL_DEPTH_COMPONENT32;
+
+      case GL_FLOAT:
+         if (ctx->Extensions.ARB_depth_buffer_float)
+            return GL_DEPTH_COMPONENT32F;
+         else
+            return GL_DEPTH_COMPONENT;
+
+      default:
+         return GL_DEPTH_COMPONENT;
+      }
+
    case GL_DEPTH_STENCIL:
-      return GL_DEPTH_STENCIL;
+      switch (type) {
+      case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+         return GL_DEPTH32F_STENCIL8;
+
+      case GL_UNSIGNED_INT_24_8:
+      default:
+         return GL_DEPTH24_STENCIL8;
+      }
+
    case GL_STENCIL_INDEX:
       return GL_STENCIL_INDEX;
+
    default:
       if (_mesa_is_integer_format(format)) {
          switch (type) {
@@ -988,11 +1013,12 @@ st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
    else if (format == GL_DEPTH_COMPONENT)
       write_depth = GL_TRUE;
 
-   if (write_stencil) {
-      enum pipe_format tex_format;
-      /* can we write to stencil if not fallback */
-      if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
-        goto stencil_fallback;
+   if (write_stencil &&
+       !pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {
+      /* software fallback */
+      draw_stencil_pixels(ctx, x, y, width, height, format, type,
+                          unpack, pixels);
+      return;
    }
 
    /* Mesa state should be up to date by now */
@@ -1083,11 +1109,6 @@ st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
          pipe_resource_reference(&pt, NULL);
       }
    }
-   return;
-
-stencil_fallback:
-   draw_stencil_pixels(ctx, x, y, width, height, format, type,
-                      unpack, pixels);
 }