[Mesa-dev] [PATCH 3/7] mesa_st: Use _mesa_geometric_ functions appropriately

Edward O'Callaghan eocallaghan at alterapraxis.com
Sat Jan 30 22:25:19 PST 2016


Change references to gl_framebuffer::Width, Height, MaxNumLayers
and Visual::samples to use the _mesa_geometric_ convenience functions
for those places where the geometry of the gl_framebuffer is needed.
This is in contrast to the geometry of the intersection of the
attachments of the gl_framebuffer.

This patch paves the way to enable GL_ARB_framebuffer_no_attachements
for all gallium drivers.

Signed-off-by: Edward O'Callaghan <eocallaghan at alterapraxis.com>
---
 src/mesa/state_tracker/st_atom_rasterizer.c | 3 ++-
 src/mesa/state_tracker/st_atom_scissor.c    | 8 ++++++--
 src/mesa/state_tracker/st_cb_drawpixels.c   | 9 +++++----
 src/mesa/state_tracker/st_cb_drawtex.c      | 9 +++++----
 src/mesa/state_tracker/st_cb_msaa.c         | 4 +++-
 5 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/src/mesa/state_tracker/st_atom_rasterizer.c b/src/mesa/state_tracker/st_atom_rasterizer.c
index c20cadf..c1c143b 100644
--- a/src/mesa/state_tracker/st_atom_rasterizer.c
+++ b/src/mesa/state_tracker/st_atom_rasterizer.c
@@ -31,6 +31,7 @@
   */
  
 #include "main/macros.h"
+#include "main/framebuffer.h"
 #include "st_context.h"
 #include "st_atom.h"
 #include "st_debug.h"
@@ -243,7 +244,7 @@ static void update_raster_state( struct st_context *st )
          ctx->Multisample._Enabled &&
          ctx->Multisample.SampleShading &&
          ctx->Multisample.MinSampleShadingValue *
-         ctx->DrawBuffer->Visual.samples > 1;
+         _mesa_geometric_samples(ctx->DrawBuffer) > 1;
 
    /* _NEW_SCISSOR */
    raster->scissor = ctx->Scissor.EnableFlags;
diff --git a/src/mesa/state_tracker/st_atom_scissor.c b/src/mesa/state_tracker/st_atom_scissor.c
index 4ebe799..605d5cb 100644
--- a/src/mesa/state_tracker/st_atom_scissor.c
+++ b/src/mesa/state_tracker/st_atom_scissor.c
@@ -32,6 +32,7 @@
  
 
 #include "main/macros.h"
+#include "main/framebuffer.h"
 #include "st_context.h"
 #include "pipe/p_context.h"
 #include "st_atom.h"
@@ -46,14 +47,17 @@ update_scissor( struct st_context *st )
    struct pipe_scissor_state scissor[PIPE_MAX_VIEWPORTS];
    const struct gl_context *ctx = st->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);
    GLint miny, maxy;
    unsigned i;
    bool changed = false;
+
    for (i = 0 ; i < ctx->Const.MaxViewports; i++) {
       scissor[i].minx = 0;
       scissor[i].miny = 0;
-      scissor[i].maxx = fb->Width;
-      scissor[i].maxy = fb->Height;
+      scissor[i].maxx = fb_width;
+      scissor[i].maxy = fb_height;
 
       if (ctx->Scissor.EnableFlags & (1 << i)) {
          /* need to be careful here with xmax or ymax < 0 */
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 04a9de0..0c46277 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -35,6 +35,7 @@
 #include "main/bufferobj.h"
 #include "main/blit.h"
 #include "main/format_pack.h"
+#include "main/framebuffer.h"
 #include "main/macros.h"
 #include "main/mtypes.h"
 #include "main/pack.h"
@@ -467,8 +468,8 @@ draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
    /* setup vertex data */
    {
       const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-      const GLfloat fb_width = (GLfloat) fb->Width;
-      const GLfloat fb_height = (GLfloat) fb->Height;
+      const GLfloat fb_width = (GLfloat) _mesa_geometric_width(fb);
+      const GLfloat fb_height = (GLfloat) _mesa_geometric_height(fb);
       const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
       const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
       const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
@@ -670,8 +671,8 @@ draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
 
    /* viewport state: viewport matching window dims */
    {
-      const float w = (float) ctx->DrawBuffer->Width;
-      const float h = (float) ctx->DrawBuffer->Height;
+      const float w = (float) _mesa_geometric_width(ctx->DrawBuffer);
+      const float h = (float) _mesa_geometric_height(ctx->DrawBuffer);
       struct pipe_viewport_state vp;
       vp.scale[0] =  0.5f * w;
       vp.scale[1] = -0.5f * h;
diff --git a/src/mesa/state_tracker/st_cb_drawtex.c b/src/mesa/state_tracker/st_cb_drawtex.c
index e6ab77f..811c50b 100644
--- a/src/mesa/state_tracker/st_cb_drawtex.c
+++ b/src/mesa/state_tracker/st_cb_drawtex.c
@@ -16,6 +16,7 @@
 #include "main/image.h"
 #include "main/macros.h"
 #include "main/teximage.h"
+#include "main/framebuffer.h"
 #include "program/program.h"
 #include "program/prog_print.h"
 
@@ -164,8 +165,8 @@ st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
       /* positions (in clip coords) */
       {
          const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
-         const GLfloat fb_width = (GLfloat)fb->Width;
-         const GLfloat fb_height = (GLfloat)fb->Height;
+         const GLfloat fb_width = (GLfloat)_mesa_geometric_width(fb);
+         const GLfloat fb_height = (GLfloat)_mesa_geometric_height(fb);
 
          const GLfloat clip_x0 = (GLfloat)(x0 / fb_width * 2.0 - 1.0);
          const GLfloat clip_y0 = (GLfloat)(y0 / fb_height * 2.0 - 1.0);
@@ -261,8 +262,8 @@ st_DrawTex(struct gl_context *ctx, GLfloat x, GLfloat y, GLfloat z,
    {
       const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
       const GLboolean invert = (st_fb_orientation(fb) == Y_0_TOP);
-      const GLfloat width = (GLfloat)fb->Width;
-      const GLfloat height = (GLfloat)fb->Height;
+      const GLfloat width = (GLfloat)_mesa_geometric_width(fb);
+      const GLfloat height = (GLfloat)_mesa_geometric_height(fb);
       struct pipe_viewport_state vp;
       vp.scale[0] =  0.5f * width;
       vp.scale[1] = height * (invert ? -0.5f : 0.5f);
diff --git a/src/mesa/state_tracker/st_cb_msaa.c b/src/mesa/state_tracker/st_cb_msaa.c
index e9955b6..968df36 100644
--- a/src/mesa/state_tracker/st_cb_msaa.c
+++ b/src/mesa/state_tracker/st_cb_msaa.c
@@ -27,6 +27,7 @@
 
 #include "main/bufferobj.h"
 #include "main/imports.h"
+#include "main/framebuffer.h"
 
 #include "state_tracker/st_cb_msaa.h"
 #include "state_tracker/st_context.h"
@@ -43,11 +44,12 @@ st_GetSamplePosition(struct gl_context *ctx,
                      GLfloat *outPos)
 {
    struct st_context *st = st_context(ctx);
+   unsigned int fb_samples = _mesa_geometric_samples(fb);
 
    st_validate_state(st);
 
    if (st->pipe->get_sample_position)
-      st->pipe->get_sample_position(st->pipe, (unsigned) fb->Visual.samples,
+      st->pipe->get_sample_position(st->pipe, fb_samples,
                                     index, outPos);
    else
       outPos[0] = outPos[1] = 0.5f;
-- 
2.5.0



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