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i965: Add context flag to disable the viewport transform

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This lets us disable the viewport transform, which will be useful for
emitting 3DPRIM_RECTLIST.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kristian Høgsberg 2014-07-07 15:00:46 -07:00
parent 1effbf6898
commit ff7a2fc322
5 changed files with 13 additions and 5 deletions
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1
src/mesa/drivers/dri/i965/brw_context.c
View file

@ -757,6 +757,7 @@ brwCreateContext(gl_api api,
brw->prim_restart.in_progress = false;
brw->prim_restart.enable_cut_index = false;
brw->gs.enabled = false;
brw->sf.viewport_transform_enable = true;
ctx->VertexProgram._MaintainTnlProgram = true;
ctx->FragmentProgram._MaintainTexEnvProgram = true;

1
src/mesa/drivers/dri/i965/brw_context.h
View file

@ -1238,6 +1238,7 @@ struct brw_context
uint32_t prog_offset;
uint32_t state_offset;
uint32_t vp_offset;
bool viewport_transform_enable;
} sf;
struct {

5
src/mesa/drivers/dri/i965/gen6_sf_state.c
View file

@ -241,9 +241,10 @@ upload_sf_state(struct brw_context *brw)
uint32_t point_sprite_origin;
dw1 = GEN6_SF_SWIZZLE_ENABLE | num_outputs << GEN6_SF_NUM_OUTPUTS_SHIFT;
dw2 = GEN6_SF_STATISTICS_ENABLE;
dw2 = GEN6_SF_STATISTICS_ENABLE |
GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
if (brw->sf.viewport_transform_enable)
dw2 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
dw3 = 0;
dw4 = 0;

6
src/mesa/drivers/dri/i965/gen7_sf_state.c
View file

@ -109,8 +109,10 @@ upload_sf_state(struct brw_context *brw)
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
dw1 = GEN6_SF_STATISTICS_ENABLE |
GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
dw1 = GEN6_SF_STATISTICS_ENABLE;
if (brw->sf.viewport_transform_enable)
dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
/* _NEW_BUFFERS */
dw1 |= (brw_depthbuffer_format(brw) << GEN7_SF_DEPTH_BUFFER_SURFACE_FORMAT_SHIFT);

5
src/mesa/drivers/dri/i965/gen8_sf_state.c
View file

@ -117,7 +117,10 @@ upload_sf(struct brw_context *brw)
uint32_t dw1 = 0, dw2 = 0, dw3 = 0;
float point_size;
dw1 = GEN6_SF_STATISTICS_ENABLE | GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
dw1 = GEN6_SF_STATISTICS_ENABLE;
if (brw->sf.viewport_transform_enable)
dw1 |= GEN6_SF_VIEWPORT_TRANSFORM_ENABLE;
/* _NEW_LINE */
uint32_t line_width_u3_7 = U_FIXED(CLAMP(ctx->Line.Width, 0.0, 7.99), 7);