[Mesa-dev] [PATCH 2/3] mesa: add gl_constants::AllowMappedBuffersDuringExecution

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

for skipping mapped-buffer checking in every GL draw call
---
 src/mesa/main/mtypes.h                 | 3 +++
 src/mesa/state_tracker/st_extensions.c | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 28d3d948..efc6920 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3901,20 +3901,23 @@ struct gl_constants
                                      *   other builtin variables. */
 
    /** GL_OES_primitive_bounding_box */
    bool NoPrimitiveBoundingBoxOutput;
 
    /** GL_ARB_sparse_buffer */
    GLuint SparseBufferPageSize;
 
    /** Used as an input for sha1 generation in the on-disk shader cache */
    unsigned char *dri_config_options_sha1;
+
+   /** When drivers are OK with mapped buffers during draw and other calls. */
+   bool AllowMappedBuffersDuringExecution;
 };
 
 
 /**
  * Enable flag for each OpenGL extension.  Different device drivers will
  * enable different extensions at runtime.
  */
 struct gl_extensions
 {
    GLboolean dummy;  /* don't remove this! */
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index fffc0ef..2fa7ba7 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -456,20 +456,23 @@ void st_init_limits(struct pipe_screen *screen,
     * in practicality.
     */
    c->MaxFramebufferLayers =
       screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
 
    c->MaxWindowRectangles =
       screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
 
    c->SparseBufferPageSize =
       screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
+
+   c->AllowMappedBuffersDuringExecution =
+      screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
 }
 
 
 /**
  * Given a member \c x of struct gl_extensions, return offset of
  * \c x in bytes.
  */
 #define o(x) offsetof(struct gl_extensions, x)
 
 
-- 
2.7.4