[Mesa-dev] [PATCH 13/25] gallium: Introduce max_gl*version pipe-caps

[Emil Velikov]

According to the GLX_MESA_query_renderer spec each driver should
be able to report the version of each GL api they support before
creating a context.

Currently both classic mesa and gallium evaluate the version post
context creation and while the classic drivers set the max_gl*version
according to their capabilities, gallium uses fixed values which
are not the best approach due to driver differences.

Add pipe-caps so that each driver can provide their individual capabilites.

Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
---
 src/gallium/docs/source/screen.rst   | 8 +++++++-
 src/gallium/include/pipe/p_defines.h | 6 +++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index bd553f4..7b72133 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -169,7 +169,7 @@ The integer capabilities:
   since they are linked) a driver can support. Returning 0 is equivalent
   to returning 1 because every driver has to support at least a single
   viewport/scissor combination.  
-* ''PIPE_CAP_ENDIANNESS``:: The endianness of the device.  Either
+* ``PIPE_CAP_ENDIANNESS``:: The endianness of the device.  Either
   PIPE_ENDIAN_BIG or PIPE_ENDIAN_LITTLE.
 * ``PIPE_CAP_MIXED_FRAMEBUFFER_SIZES``: Whether it is allowed to have
   different sizes for fb color/zs attachments. This controls whether
@@ -182,6 +182,12 @@ The integer capabilities:
   vertex components output by a single invocation of a geometry shader.
   This is the product of the number of attribute components per vertex and
   the number of output vertices.
+* ``PIPE_CAP_MAX_GL_CORE_VERSION``: The maximum OpenGL (Core profile) version
+  supported.
+* ``PIPE_CAP_MAX_GL_COMPAT_VERSION``: The maximum OpenGL (Compatibility profile)
+  version supported.
+* ``PIPE_CAP_MAX_GL_ES1_VERSION``: The maximum OpenGL ES1 version supported.
+* ``PIPE_CAP_MAX_GL_ES2_VERSION``: The maximum OpenGL ES2 version supported.
 
 
 .. _pipe_capf:
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 83815cd..5c27f9c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -522,7 +522,11 @@ enum pipe_cap {
    PIPE_CAP_MIXED_FRAMEBUFFER_SIZES = 86,
    PIPE_CAP_TGSI_VS_LAYER = 87,
    PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES = 88,
-   PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 89
+   PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 89,
+   PIPE_CAP_MAX_GL_CORE_VERSION = 90,
+   PIPE_CAP_MAX_GL_COMPAT_VERSION = 91,
+   PIPE_CAP_MAX_GL_ES1_VERSION = 92,
+   PIPE_CAP_MAX_GL_ES2_VERSION = 93,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
-- 
1.9.0