gallium/include: update some comments

[mesa.git] / src / gallium / include / pipe / p_defines.h

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 47c24f30862e223b655f0a5c7ed376eadb32ce26..f252d6df00d1c71b998dab1577cc46b8f64dce76 100644 (file)
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -191,9 +191,9 @@ enum pipe_texture_target {
  * Transfer object usage flags
  */
 enum pipe_transfer_usage {
-   PIPE_TRANSFER_READ,
-   PIPE_TRANSFER_WRITE,
-   PIPE_TRANSFER_READ_WRITE  /**< Read/modify/write */
+   PIPE_TRANSFER_READ = (1 << 0),
+   PIPE_TRANSFER_WRITE = (1 << 1),
+   PIPE_TRANSFER_READ_WRITE = PIPE_TRANSFER_READ | PIPE_TRANSFER_WRITE /**< Read/modify/write */
 };
 
 
@@ -210,6 +210,7 @@ enum pipe_transfer_usage {
 #define PIPE_BUFFER_USAGE_CONSTANT  (1 << 7)
 #define PIPE_BUFFER_USAGE_DISCARD   (1 << 8)
 #define PIPE_BUFFER_USAGE_DONTBLOCK (1 << 9)
+#define PIPE_BUFFER_USAGE_FLUSH_EXPLICIT (1 << 10) /**< See pipe_screen::buffer_flush_mapped_range */
 /** Pipe driver custom usage flags should be greater or equal to this value */
 #define PIPE_BUFFER_USAGE_CUSTOM    (1 << 16)
 
@@ -273,15 +274,14 @@ enum pipe_transfer_usage {
 
 
 /**
- * Implementation capabilities/limits
- * Passed to pipe->get_param()
- * XXX this will need some fine tuning...
+ * Implementation capabilities/limits which are queried through
+ * pipe_screen::get_param() and pipe_screen::get_paramf().
  */
 #define PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS 1
 #define PIPE_CAP_NPOT_TEXTURES           2
 #define PIPE_CAP_TWO_SIDED_STENCIL       3
 #define PIPE_CAP_GLSL                    4  /* XXX need something better */
-#define PIPE_CAP_S3TC                    5
+#define PIPE_CAP_S3TC                    5  /* XXX: deprecated; cap determined via supported sampler formats */
 #define PIPE_CAP_ANISOTROPIC_FILTER      6
 #define PIPE_CAP_POINT_SPRITE            7
 #define PIPE_CAP_MAX_RENDER_TARGETS      8
@@ -303,6 +303,8 @@ enum pipe_transfer_usage {
 #define PIPE_CAP_TEXTURE_MIRROR_CLAMP    24
 #define PIPE_CAP_TEXTURE_MIRROR_REPEAT   25
 #define PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS 26
+#define PIPE_CAP_TGSI_CONT_SUPPORTED     27
+#define PIPE_CAP_BLEND_EQUATION_SEPARATE 28
 
 
 /**