[Mesa-dev] [v4 PATCH 06/10] i965: Use _mesa_geometry_ functions appropriately
Kevin Rogovin
kevin.rogovin at intel.com
Wed May 27 02:49:42 PDT 2015
Change references to gl_framebuffer::Width, Height, MaxNumLayers
and Visual::samples to use the _mesa_geometry_ convenience functions
for those places where the geometry of the gl_framebuffer is needed
(in contrast to the geometry of the intersection of the attachments
of the gl_framebuffer).
This patch is to pave the way to enable GL_ARB_framebuffer_no_attachments
on Gen7 and higher in i965.
v2:
Remove changes that would only be active in Gen4/5.
Type and casting changes for consistency and readability.
v3:
Updates for rebase against master.
v4:
Use unsigned int inplace of int and remove casts to int.
Formatting fixes.
Signed-off-by: Kevin Rogovin <kevin.rogovin at intel.com>
---
src/mesa/drivers/dri/i965/brw_clip_state.c | 9 ++++++---
src/mesa/drivers/dri/i965/brw_misc_state.c | 9 ++++++---
src/mesa/drivers/dri/i965/brw_sf_state.c | 6 ++++++
src/mesa/drivers/dri/i965/brw_state_upload.c | 6 ++++--
src/mesa/drivers/dri/i965/brw_wm.c | 7 ++++---
src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 12 +++++++-----
src/mesa/drivers/dri/i965/gen6_clip_state.c | 10 +++++++---
src/mesa/drivers/dri/i965/gen6_multisample_state.c | 3 ++-
src/mesa/drivers/dri/i965/gen6_scissor_state.c | 12 +++++++++---
src/mesa/drivers/dri/i965/gen6_sf_state.c | 3 ++-
src/mesa/drivers/dri/i965/gen6_viewport_state.c | 5 +++--
src/mesa/drivers/dri/i965/gen6_wm_state.c | 3 ++-
src/mesa/drivers/dri/i965/gen7_sf_state.c | 3 ++-
src/mesa/drivers/dri/i965/gen7_viewport_state.c | 5 +++--
src/mesa/drivers/dri/i965/gen7_wm_state.c | 3 ++-
src/mesa/drivers/dri/i965/gen8_viewport_state.c | 8 +++++---
16 files changed, 70 insertions(+), 34 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_clip_state.c b/src/mesa/drivers/dri/i965/brw_clip_state.c
index 3223834..dee74db 100644
--- a/src/mesa/drivers/dri/i965/brw_clip_state.c
+++ b/src/mesa/drivers/dri/i965/brw_clip_state.c
@@ -32,6 +32,7 @@
#include "brw_context.h"
#include "brw_state.h"
#include "brw_defines.h"
+#include "main/framebuffer.h"
static void
upload_clip_vp(struct brw_context *brw)
@@ -59,7 +60,9 @@ brw_upload_clip_unit(struct brw_context *brw)
struct brw_clip_unit_state *clip;
/* _NEW_BUFFERS */
- struct gl_framebuffer *fb = ctx->DrawBuffer;
+ const struct gl_framebuffer *fb = ctx->DrawBuffer;
+ const float fb_width = (float)_mesa_geometric_width(fb);
+ const float fb_height = (float)_mesa_geometric_height(fb);
upload_clip_vp(brw);
@@ -127,8 +130,8 @@ brw_upload_clip_unit(struct brw_context *brw)
/* enable guardband clipping if we can */
if (ctx->ViewportArray[0].X == 0 &&
ctx->ViewportArray[0].Y == 0 &&
- ctx->ViewportArray[0].Width == (float) fb->Width &&
- ctx->ViewportArray[0].Height == (float) fb->Height)
+ ctx->ViewportArray[0].Width == fb_width &&
+ ctx->ViewportArray[0].Height == fb_height)
{
clip->clip5.guard_band_enable = 1;
clip->clip6.clipper_viewport_state_ptr =
diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 67a693b..5a4515b 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -39,6 +39,7 @@
#include "brw_state.h"
#include "brw_defines.h"
+#include "main/framebuffer.h"
#include "main/fbobject.h"
#include "main/glformats.h"
@@ -46,12 +47,14 @@
static void upload_drawing_rect(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
+ const struct gl_framebuffer *fb = ctx->DrawBuffer;
+ const unsigned int fb_width = _mesa_geometric_width(fb);
+ const unsigned int fb_height = _mesa_geometric_height(fb);
BEGIN_BATCH(4);
OUT_BATCH(_3DSTATE_DRAWING_RECTANGLE << 16 | (4 - 2));
OUT_BATCH(0); /* xmin, ymin */
- OUT_BATCH(((ctx->DrawBuffer->Width - 1) & 0xffff) |
- ((ctx->DrawBuffer->Height - 1) << 16));
+ OUT_BATCH(((fb_width - 1) & 0xffff) | ((fb_height - 1) << 16));
OUT_BATCH(0);
ADVANCE_BATCH();
}
@@ -767,7 +770,7 @@ static void upload_polygon_stipple_offset(struct brw_context *brw)
* works just fine, and there's no window system to worry about.
*/
if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
- OUT_BATCH((32 - (ctx->DrawBuffer->Height & 31)) & 31);
+ OUT_BATCH((32 - (_mesa_geometric_height(ctx->DrawBuffer) & 31)) & 31);
else
OUT_BATCH(0);
ADVANCE_BATCH();
diff --git a/src/mesa/drivers/dri/i965/brw_sf_state.c b/src/mesa/drivers/dri/i965/brw_sf_state.c
index 014b434..5d98922 100644
--- a/src/mesa/drivers/dri/i965/brw_sf_state.c
+++ b/src/mesa/drivers/dri/i965/brw_sf_state.c
@@ -52,6 +52,12 @@ static void upload_sf_vp(struct brw_context *brw)
sizeof(*sfv), 32, &brw->sf.vp_offset);
memset(sfv, 0, sizeof(*sfv));
+ /* Accessing the fields Width and Height of gl_framebuffer to produce the
+ * values to program the viewport and scissor is fine as long as the
+ * gl_framebuffer has atleast one attachment.
+ */
+ assert(ctx->DrawBuffer->_HasAttachments);
+
if (render_to_fbo) {
y_scale = 1.0;
y_bias = 0;
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index 84b0861..08d1ac2 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -41,6 +41,7 @@
#include "brw_gs.h"
#include "brw_wm.h"
#include "brw_cs.h"
+#include "main/framebuffer.h"
static const struct brw_tracked_state *gen4_atoms[] =
{
@@ -660,6 +661,7 @@ brw_upload_pipeline_state(struct brw_context *brw,
int i;
static int dirty_count = 0;
struct brw_state_flags state = brw->state.pipelines[pipeline];
+ unsigned int fb_samples = _mesa_geometric_samples(ctx->DrawBuffer);
brw_select_pipeline(brw, pipeline);
@@ -696,8 +698,8 @@ brw_upload_pipeline_state(struct brw_context *brw,
brw->ctx.NewDriverState |= BRW_NEW_META_IN_PROGRESS;
}
- if (brw->num_samples != ctx->DrawBuffer->Visual.samples) {
- brw->num_samples = ctx->DrawBuffer->Visual.samples;
+ if (brw->num_samples != fb_samples) {
+ brw->num_samples = fb_samples;
brw->ctx.NewDriverState |= BRW_NEW_NUM_SAMPLES;
}
diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 45a03bb..592a729 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -36,6 +36,7 @@
#include "main/formats.h"
#include "main/fbobject.h"
#include "main/samplerobj.h"
+#include "main/framebuffer.h"
#include "program/prog_parameter.h"
#include "program/program.h"
#include "intel_mipmap_tree.h"
@@ -462,7 +463,7 @@ static void brw_wm_populate_key( struct brw_context *brw,
GLuint lookup = 0;
GLuint line_aa;
bool program_uses_dfdy = fp->program.UsesDFdy;
- bool multisample_fbo = ctx->DrawBuffer->Visual.samples > 1;
+ const bool multisample_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
memset(key, 0, sizeof(*key));
@@ -561,7 +562,7 @@ static void brw_wm_populate_key( struct brw_context *brw,
* drawable height in order to invert the Y axis.
*/
if (fp->program.Base.InputsRead & VARYING_BIT_POS) {
- key->drawable_height = ctx->DrawBuffer->Height;
+ key->drawable_height = _mesa_geometric_height(ctx->DrawBuffer);
}
if ((fp->program.Base.InputsRead & VARYING_BIT_POS) || program_uses_dfdy) {
@@ -580,7 +581,7 @@ static void brw_wm_populate_key( struct brw_context *brw,
key->persample_shading =
_mesa_get_min_invocations_per_fragment(ctx, &fp->program, true) > 1;
if (key->persample_shading)
- key->persample_2x = ctx->DrawBuffer->Visual.samples == 2;
+ key->persample_2x = _mesa_geometric_samples(ctx->DrawBuffer) == 2;
key->compute_pos_offset =
_mesa_get_min_invocations_per_fragment(ctx, &fp->program, false) > 1 &&
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 160dd2f..72aad96 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -35,6 +35,7 @@
#include "main/mtypes.h"
#include "main/samplerobj.h"
#include "program/prog_parameter.h"
+#include "main/framebuffer.h"
#include "intel_mipmap_tree.h"
#include "intel_batchbuffer.h"
@@ -738,6 +739,9 @@ brw_update_renderbuffer_surfaces(struct brw_context *brw,
uint32_t *surf_offset)
{
GLuint i;
+ const unsigned int w = _mesa_geometric_width(fb);
+ const unsigned int h = _mesa_geometric_height(fb);
+ const unsigned int s = _mesa_geometric_samples(fb);
/* Update surfaces for drawing buffers */
if (fb->_NumColorDrawBuffers >= 1) {
@@ -748,17 +752,15 @@ brw_update_renderbuffer_surfaces(struct brw_context *brw,
surf_offset[surf_index] =
brw->vtbl.update_renderbuffer_surface(
brw, fb->_ColorDrawBuffers[i],
- fb->MaxNumLayers > 0, i, surf_index);
+ _mesa_geometric_layers(fb) > 0, i, surf_index);
} else {
- brw->vtbl.emit_null_surface_state(
- brw, fb->Width, fb->Height, fb->Visual.samples,
+ brw->vtbl.emit_null_surface_state(brw, w, h, s,
&surf_offset[surf_index]);
}
}
} else {
const uint32_t surf_index = render_target_start;
- brw->vtbl.emit_null_surface_state(
- brw, fb->Width, fb->Height, fb->Visual.samples,
+ brw->vtbl.emit_null_surface_state(brw, w, h, s,
&surf_offset[surf_index]);
}
}
diff --git a/src/mesa/drivers/dri/i965/gen6_clip_state.c b/src/mesa/drivers/dri/i965/gen6_clip_state.c
index aaf90df..9a29366 100644
--- a/src/mesa/drivers/dri/i965/gen6_clip_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_clip_state.c
@@ -31,6 +31,7 @@
#include "brw_util.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
static void
upload_clip_state(struct brw_context *brw)
@@ -145,11 +146,14 @@ upload_clip_state(struct brw_context *brw)
* the viewport, so we can ignore this restriction.
*/
if (brw->gen < 8) {
+ const float fb_width = (float)_mesa_geometric_width(fb);
+ const float fb_height = (float)_mesa_geometric_height(fb);
+
for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
if (ctx->ViewportArray[i].X != 0 ||
ctx->ViewportArray[i].Y != 0 ||
- ctx->ViewportArray[i].Width != (float) fb->Width ||
- ctx->ViewportArray[i].Height != (float) fb->Height) {
+ ctx->ViewportArray[i].Width != fb_width ||
+ ctx->ViewportArray[i].Height != fb_height) {
dw2 &= ~GEN6_CLIP_GB_TEST;
break;
}
@@ -179,7 +183,7 @@ upload_clip_state(struct brw_context *brw)
dw2);
OUT_BATCH(U_FIXED(0.125, 3) << GEN6_CLIP_MIN_POINT_WIDTH_SHIFT |
U_FIXED(255.875, 3) << GEN6_CLIP_MAX_POINT_WIDTH_SHIFT |
- (fb->MaxNumLayers > 0 ? 0 : GEN6_CLIP_FORCE_ZERO_RTAINDEX) |
+ (_mesa_geometric_layers(fb) > 0 ? 0 : GEN6_CLIP_FORCE_ZERO_RTAINDEX) |
((ctx->Const.MaxViewports - 1) & GEN6_CLIP_MAX_VP_INDEX_MASK));
ADVANCE_BATCH();
}
diff --git a/src/mesa/drivers/dri/i965/gen6_multisample_state.c b/src/mesa/drivers/dri/i965/gen6_multisample_state.c
index ec46479..36734f5 100644
--- a/src/mesa/drivers/dri/i965/gen6_multisample_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_multisample_state.c
@@ -26,6 +26,7 @@
#include "brw_context.h"
#include "brw_defines.h"
#include "brw_multisample_state.h"
+#include "main/framebuffer.h"
void
gen6_get_sample_position(struct gl_context *ctx,
@@ -34,7 +35,7 @@ gen6_get_sample_position(struct gl_context *ctx,
{
uint8_t bits;
- switch (fb->Visual.samples) {
+ switch (_mesa_geometric_samples(fb)) {
case 1:
result[0] = result[1] = 0.5f;
return;
diff --git a/src/mesa/drivers/dri/i965/gen6_scissor_state.c b/src/mesa/drivers/dri/i965/gen6_scissor_state.c
index 0111f15..17b4a7f 100644
--- a/src/mesa/drivers/dri/i965/gen6_scissor_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_scissor_state.c
@@ -39,6 +39,8 @@ gen6_upload_scissor_state(struct brw_context *brw)
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
struct gen6_scissor_rect *scissor;
uint32_t scissor_state_offset;
+ const unsigned int fb_width= _mesa_geometric_width(ctx->DrawBuffer);
+ const unsigned int fb_height = _mesa_geometric_height(ctx->DrawBuffer);
scissor = brw_state_batch(brw, AUB_TRACE_SCISSOR_STATE,
sizeof(*scissor) * ctx->Const.MaxViewports, 32,
@@ -56,7 +58,11 @@ gen6_upload_scissor_state(struct brw_context *brw)
for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
int bbox[4];
- _mesa_scissor_bounding_box(ctx, ctx->DrawBuffer, i, bbox);
+ bbox[0] = 0;
+ bbox[1] = fb_width;
+ bbox[2] = 0;
+ bbox[3] = fb_height;
+ _mesa_intersect_scissor_bounding_box(ctx, i, bbox);
if (bbox[0] == bbox[1] || bbox[2] == bbox[3]) {
/* If the scissor was out of bounds and got clamped to 0 width/height
@@ -80,8 +86,8 @@ gen6_upload_scissor_state(struct brw_context *brw)
/* memory: Y=0=top */
scissor[i].xmin = bbox[0];
scissor[i].xmax = bbox[1] - 1;
- scissor[i].ymin = ctx->DrawBuffer->Height - bbox[3];
- scissor[i].ymax = ctx->DrawBuffer->Height - bbox[2] - 1;
+ scissor[i].ymin = fb_height - bbox[3];
+ scissor[i].ymax = fb_height - bbox[2] - 1;
}
}
BEGIN_BATCH(2);
diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c
index e445ce2..834213e 100644
--- a/src/mesa/drivers/dri/i965/gen6_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c
@@ -31,6 +31,7 @@
#include "brw_util.h"
#include "main/macros.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
#include "intel_batchbuffer.h"
/**
@@ -273,7 +274,7 @@ upload_sf_state(struct brw_context *brw)
int i;
/* _NEW_BUFFER */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
- bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
+ const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
const int urb_entry_read_offset = BRW_SF_URB_ENTRY_READ_OFFSET;
float point_size;
diff --git a/src/mesa/drivers/dri/i965/gen6_viewport_state.c b/src/mesa/drivers/dri/i965/gen6_viewport_state.c
index 2fb0182..7c8d884 100644
--- a/src/mesa/drivers/dri/i965/gen6_viewport_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_viewport_state.c
@@ -30,6 +30,7 @@
#include "brw_defines.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
#include "main/viewport.h"
/* The clip VP defines the guardband region where expensive clipping is skipped
@@ -93,10 +94,10 @@ gen6_upload_sf_vp(struct brw_context *brw)
/* _NEW_BUFFERS */
if (render_to_fbo) {
y_scale = 1.0;
- y_bias = 0;
+ y_bias = 0.0;
} else {
y_scale = -1.0;
- y_bias = ctx->DrawBuffer->Height;
+ y_bias = (float)_mesa_geometric_height(ctx->DrawBuffer);
}
for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c
index 7081eb7..d1748ba 100644
--- a/src/mesa/drivers/dri/i965/gen6_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c
@@ -33,6 +33,7 @@
#include "program/program.h"
#include "program/prog_parameter.h"
#include "program/prog_statevars.h"
+#include "main/framebuffer.h"
#include "intel_batchbuffer.h"
static void
@@ -284,7 +285,7 @@ upload_wm_state(struct brw_context *brw)
const struct brw_wm_prog_data *prog_data = brw->wm.prog_data;
/* _NEW_BUFFERS */
- const bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
+ const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
/* In case of non 1x per sample shading, only one of SIMD8 and SIMD16
* should be enabled. We do 'SIMD16 only' dispatch if a SIMD16 shader
diff --git a/src/mesa/drivers/dri/i965/gen7_sf_state.c b/src/mesa/drivers/dri/i965/gen7_sf_state.c
index 58e3337..60f6efa 100644
--- a/src/mesa/drivers/dri/i965/gen7_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_sf_state.c
@@ -27,6 +27,7 @@
#include "brw_util.h"
#include "main/macros.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
#include "intel_batchbuffer.h"
static void
@@ -109,7 +110,7 @@ upload_sf_state(struct brw_context *brw)
float point_size;
/* _NEW_BUFFERS */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
- bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
+ const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
dw1 = GEN6_SF_STATISTICS_ENABLE;
diff --git a/src/mesa/drivers/dri/i965/gen7_viewport_state.c b/src/mesa/drivers/dri/i965/gen7_viewport_state.c
index eb59684..b655205 100644
--- a/src/mesa/drivers/dri/i965/gen7_viewport_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_viewport_state.c
@@ -26,6 +26,7 @@
#include "brw_defines.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
#include "main/viewport.h"
static void
@@ -45,10 +46,10 @@ gen7_upload_sf_clip_viewport(struct brw_context *brw)
/* _NEW_BUFFERS */
if (render_to_fbo) {
y_scale = 1.0;
- y_bias = 0;
+ y_bias = 0.0;
} else {
y_scale = -1.0;
- y_bias = ctx->DrawBuffer->Height;
+ y_bias = (float)_mesa_geometric_height(ctx->DrawBuffer);
}
for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c
index b918275..1c47076 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c
@@ -30,6 +30,7 @@
#include "program/program.h"
#include "program/prog_parameter.h"
#include "program/prog_statevars.h"
+#include "main/framebuffer.h"
#include "intel_batchbuffer.h"
static void
@@ -45,7 +46,7 @@ upload_wm_state(struct brw_context *brw)
uint32_t dw1, dw2;
/* _NEW_BUFFERS */
- bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
+ const bool multisampled_fbo = _mesa_geometric_samples(ctx->DrawBuffer) > 1;
dw1 = dw2 = 0;
dw1 |= GEN7_WM_STATISTICS_ENABLE;
diff --git a/src/mesa/drivers/dri/i965/gen8_viewport_state.c b/src/mesa/drivers/dri/i965/gen8_viewport_state.c
index 322e466..2d8eeb1 100644
--- a/src/mesa/drivers/dri/i965/gen8_viewport_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_viewport_state.c
@@ -26,6 +26,7 @@
#include "brw_defines.h"
#include "intel_batchbuffer.h"
#include "main/fbobject.h"
+#include "main/framebuffer.h"
#include "main/viewport.h"
static void
@@ -33,6 +34,7 @@ gen8_upload_sf_clip_viewport(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
float y_scale, y_bias;
+ const float fb_height = (float)_mesa_geometric_height(ctx->DrawBuffer);
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
float *vp = brw_state_batch(brw, AUB_TRACE_SF_VP_STATE,
@@ -47,7 +49,7 @@ gen8_upload_sf_clip_viewport(struct brw_context *brw)
y_bias = 0;
} else {
y_scale = -1.0;
- y_bias = ctx->DrawBuffer->Height;
+ y_bias = fb_height;
}
for (unsigned i = 0; i < ctx->Const.MaxViewports; i++) {
@@ -116,8 +118,8 @@ gen8_upload_sf_clip_viewport(struct brw_context *brw)
} else {
vp[12] = ctx->ViewportArray[i].X;
vp[13] = viewport_Xmax - 1;
- vp[14] = ctx->DrawBuffer->Height - viewport_Ymax;
- vp[15] = ctx->DrawBuffer->Height - ctx->ViewportArray[i].Y - 1;
+ vp[14] = fb_height - viewport_Ymax;
+ vp[15] = fb_height - ctx->ViewportArray[i].Y - 1;
}
vp += 16;
--
1.9.1
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