diff options
| author | Courtney Goeltzenleuchter <[email protected]> | 2013-11-13 13:15:19 -0700 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2014-01-20 11:32:05 -0800 |
| commit | 7837f425e7242bfc12f3d6d57d343609071ea6aa (patch) | |
| tree | 32421cddb1a87367822b746af4ee42071db35c7c /src | |
| parent | d3ee8ba3469a6c143f5817e35a5200e9c836de32 (diff) | |
i965: Enable ARB_viewport_array
v2 (idr): Only enable the extension on GEN7+ w/core profile because it
requires geometry shaders.
v3 (idr): Add some casting to fix setting of ViewportBounds.Min.
Negating an unsigned value, then casting to float doesn't do what you
might think it does.
Signed-off-by: Courtney Goeltzenleuchter <[email protected]>
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.c | 11 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_extensions.c | 6 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 173f95a6adf..d6c41e610cc 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -474,6 +474,17 @@ brw_initialize_context_constants(struct brw_context *brw) } ctx->ShaderCompilerOptions[MESA_SHADER_VERTEX].PreferDP4 = true; + + /* ARB_viewport_array */ + if (brw->gen >= 7 && ctx->API == API_OPENGL_CORE) { + ctx->Const.MaxViewports = GEN7_NUM_VIEWPORTS; + ctx->Const.ViewportSubpixelBits = 0; + + /* Cast to float before negating becuase MaxViewportWidth is unsigned. + */ + ctx->Const.ViewportBounds.Min = -(float)ctx->Const.MaxViewportWidth; + ctx->Const.ViewportBounds.Max = ctx->Const.MaxViewportWidth; + } } /** diff --git a/src/mesa/drivers/dri/i965/intel_extensions.c b/src/mesa/drivers/dri/i965/intel_extensions.c index f3dc82336d8..ab73434437f 100644 --- a/src/mesa/drivers/dri/i965/intel_extensions.c +++ b/src/mesa/drivers/dri/i965/intel_extensions.c @@ -294,6 +294,12 @@ intelInitExtensions(struct gl_context *ctx) ctx->Extensions.ARB_transform_feedback_instanced = true; ctx->Extensions.ARB_draw_indirect = true; } + + /* Only enable this in core profile because other parts of Mesa behave + * slightly differently when the extension is enabled. + */ + if (ctx->API == API_OPENGL_CORE) + ctx->Extensions.ARB_viewport_array = true; } if (brw->gen == 5 || can_write_oacontrol(brw)) |