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path: root/src/mesa/state_tracker/st_cb_clear.c
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Diffstat (limited to 'src/mesa/state_tracker/st_cb_clear.c')
-rw-r--r--src/mesa/state_tracker/st_cb_clear.c80
1 files changed, 49 insertions, 31 deletions
diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c
index 9e66eed363..6007c76718 100644
--- a/src/mesa/state_tracker/st_cb_clear.c
+++ b/src/mesa/state_tracker/st_cb_clear.c
@@ -47,16 +47,19 @@
#include "st_inlines.h"
#include "pipe/p_context.h"
-#include "util/u_inlines.h"
#include "pipe/p_state.h"
#include "pipe/p_defines.h"
#include "util/u_format.h"
+#include "util/u_inlines.h"
#include "util/u_simple_shaders.h"
#include "util/u_draw_quad.h"
#include "cso_cache/cso_context.h"
+/**
+ * Do per-context initialization for glClear.
+ */
void
st_init_clear(struct st_context *st)
{
@@ -67,8 +70,7 @@ st_init_clear(struct st_context *st)
st->clear.raster.gl_rasterization_rules = 1;
/* fragment shader state: color pass-through program */
- st->clear.fs =
- util_make_fragment_passthrough_shader(pipe);
+ st->clear.fs = util_make_fragment_passthrough_shader(pipe);
/* vertex shader state: color/position pass-through */
{
@@ -82,6 +84,9 @@ st_init_clear(struct st_context *st)
}
+/**
+ * Free per-context state for glClear.
+ */
void
st_destroy_clear(struct st_context *st)
{
@@ -131,7 +136,8 @@ draw_quad(GLcontext *ctx,
}
if (!st->clear.vbuf) {
- st->clear.vbuf = pipe_buffer_create(pipe->screen, 32, PIPE_BUFFER_USAGE_VERTEX,
+ st->clear.vbuf = pipe_buffer_create(pipe->screen, 32,
+ PIPE_BUFFER_USAGE_VERTEX,
max_slots * sizeof(st->clear.vertices));
}
@@ -160,7 +166,8 @@ draw_quad(GLcontext *ctx,
/* put vertex data into vbuf */
st_no_flush_pipe_buffer_write_nooverlap(st, st->clear.vbuf,
- st->clear.vbuf_slot * sizeof(st->clear.vertices),
+ st->clear.vbuf_slot
+ * sizeof(st->clear.vertices),
sizeof(st->clear.vertices),
st->clear.vertices);
@@ -213,6 +220,7 @@ clear_with_quad(GLcontext *ctx,
cso_save_clip(st->cso_context);
cso_save_fragment_shader(st->cso_context);
cso_save_vertex_shader(st->cso_context);
+ cso_save_vertex_elements(st->cso_context);
/* blend state: RGBA masking */
{
@@ -264,6 +272,8 @@ clear_with_quad(GLcontext *ctx,
cso_set_depth_stencil_alpha(st->cso_context, &depth_stencil);
}
+ cso_set_vertex_elements(st->cso_context, 2, st->velems_util_draw);
+
cso_set_rasterizer(st->cso_context, &st->clear.raster);
/* viewport state: viewport matching window dims */
@@ -286,7 +296,8 @@ clear_with_quad(GLcontext *ctx,
cso_set_vertex_shader_handle(st->cso_context, st->clear.vs);
/* draw quad matching scissor rect (XXX verify coord round-off) */
- draw_quad(ctx, x0, y0, x1, y1, (GLfloat) ctx->Depth.Clear, ctx->Color.ClearColor);
+ draw_quad(ctx, x0, y0, x1, y1,
+ (GLfloat) ctx->Depth.Clear, ctx->Color.ClearColor);
/* Restore pipe state */
cso_restore_blend(st->cso_context);
@@ -297,6 +308,7 @@ clear_with_quad(GLcontext *ctx,
cso_restore_clip(st->cso_context);
cso_restore_fragment_shader(st->cso_context);
cso_restore_vertex_shader(st->cso_context);
+ cso_restore_vertex_elements(st->cso_context);
}
@@ -311,18 +323,22 @@ check_clear_color_with_quad(GLcontext *ctx, struct gl_renderbuffer *rb)
ctx->Scissor.Y != 0 ||
ctx->Scissor.Width < rb->Width ||
ctx->Scissor.Height < rb->Height))
- return TRUE;
+ return GL_TRUE;
if (!ctx->Color.ColorMask[0][0] ||
!ctx->Color.ColorMask[0][1] ||
!ctx->Color.ColorMask[0][2] ||
!ctx->Color.ColorMask[0][3])
- return TRUE;
+ return GL_TRUE;
- return FALSE;
+ return GL_FALSE;
}
+/**
+ * Determine if we need to clear the combiend depth/stencil buffer by
+ * drawing a quad.
+ */
static INLINE GLboolean
check_clear_depth_stencil_with_quad(GLcontext *ctx, struct gl_renderbuffer *rb)
{
@@ -339,12 +355,12 @@ check_clear_depth_stencil_with_quad(GLcontext *ctx, struct gl_renderbuffer *rb)
ctx->Scissor.Y != 0 ||
ctx->Scissor.Width < rb->Width ||
ctx->Scissor.Height < rb->Height))
- return TRUE;
+ return GL_TRUE;
if (maskStencil)
- return TRUE;
+ return GL_TRUE;
- return FALSE;
+ return GL_FALSE;
}
@@ -362,13 +378,12 @@ check_clear_depth_with_quad(GLcontext *ctx, struct gl_renderbuffer *rb)
ctx->Scissor.Y != 0 ||
ctx->Scissor.Width < rb->Width ||
ctx->Scissor.Height < rb->Height))
- return TRUE;
+ return GL_TRUE;
- if (isDS &&
- ctx->DrawBuffer->Visual.stencilBits > 0)
- return TRUE;
+ if (isDS && ctx->DrawBuffer->Visual.stencilBits > 0)
+ return GL_TRUE;
- return FALSE;
+ return GL_FALSE;
}
@@ -389,30 +404,33 @@ check_clear_stencil_with_quad(GLcontext *ctx, struct gl_renderbuffer *rb)
rb->Format == MESA_FORMAT_S8_Z24);
if (maskStencil)
- return TRUE;
+ return GL_TRUE;
if (ctx->Scissor.Enabled &&
(ctx->Scissor.X != 0 ||
ctx->Scissor.Y != 0 ||
ctx->Scissor.Width < rb->Width ||
ctx->Scissor.Height < rb->Height))
- return TRUE;
+ return GL_TRUE;
/* This is correct, but it is necessary to look at the depth clear
* value held in the surface when it comes time to issue the clear,
* rather than taking depth and stencil clear values from the
* current state.
*/
- if (isDS &&
- ctx->DrawBuffer->Visual.depthBits > 0)
- return TRUE;
+ if (isDS && ctx->DrawBuffer->Visual.depthBits > 0)
+ return GL_TRUE;
- return FALSE;
+ return GL_FALSE;
}
-void st_flush_clear( struct st_context *st )
+/**
+ * Called when we need to flush.
+ */
+void
+st_flush_clear(struct st_context *st)
{
/* Release vertex buffer to avoid synchronous rendering if we were
* to map it in the next frame.
@@ -425,10 +443,9 @@ void st_flush_clear( struct st_context *st )
/**
* Called via ctx->Driver.Clear()
- * XXX: doesn't pick up the differences between front/back/left/right
- * clears. Need to sort that out...
*/
-static void st_clear(GLcontext *ctx, GLbitfield mask)
+static void
+st_Clear(GLcontext *ctx, GLbitfield mask)
{
static const GLbitfield BUFFER_BITS_DS
= (BUFFER_BIT_DEPTH | BUFFER_BIT_STENCIL);
@@ -437,8 +454,8 @@ static void st_clear(GLcontext *ctx, GLbitfield mask)
= ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
struct gl_renderbuffer *stencilRb
= ctx->DrawBuffer->Attachment[BUFFER_STENCIL].Renderbuffer;
- GLbitfield quad_buffers = 0;
- GLbitfield clear_buffers = 0;
+ GLbitfield quad_buffers = 0x0;
+ GLbitfield clear_buffers = 0x0;
GLuint i;
/* This makes sure the pipe has the latest scissor, etc values */
@@ -523,7 +540,8 @@ static void st_clear(GLcontext *ctx, GLbitfield mask)
}
-void st_init_clear_functions(struct dd_function_table *functions)
+void
+st_init_clear_functions(struct dd_function_table *functions)
{
- functions->Clear = st_clear;
+ functions->Clear = st_Clear;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-09 11:32:12 +0000