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Diffstat (limited to 'shared/intel_clear.c')
-rw-r--r--shared/intel_clear.c106
1 files changed, 74 insertions, 32 deletions
diff --git a/shared/intel_clear.c b/shared/intel_clear.c
index c3ba50f..19f4763 100644
--- a/shared/intel_clear.c
+++ b/shared/intel_clear.c
@@ -30,6 +30,7 @@
#include "main/enums.h"
#include "main/image.h"
#include "main/mtypes.h"
+#include "main/arrayobj.h"
#include "main/attrib.h"
#include "main/blend.h"
#include "main/bufferobj.h"
@@ -38,6 +39,7 @@
#include "main/enable.h"
#include "main/macros.h"
#include "main/matrix.h"
+#include "main/polygon.h"
#include "main/texstate.h"
#include "main/shaders.h"
#include "main/stencil.h"
@@ -65,6 +67,45 @@
BUFFER_BIT_COLOR6 | \
BUFFER_BIT_COLOR7)
+
+/**
+ * Per-context one-time init of things for intl_clear_tris().
+ * Basically set up a private array object for vertex/color arrays.
+ */
+static void
+init_clear(GLcontext *ctx)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct gl_array_object *arraySave = NULL;
+ const GLuint arrayBuffer = ctx->Array.ArrayBufferObj->Name;
+ const GLuint elementBuffer = ctx->Array.ElementArrayBufferObj->Name;
+
+ /* create new array object */
+ intel->clear.arrayObj = _mesa_new_array_object(ctx, ~0);
+
+ /* save current array object, bind new one */
+ _mesa_reference_array_object(ctx, &arraySave, ctx->Array.ArrayObj);
+ _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, intel->clear.arrayObj);
+
+ /* one-time setup of vertex arrays (pos, color) */
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+ _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
+ _mesa_ColorPointer(4, GL_FLOAT, 4 * sizeof(GLfloat), intel->clear.color);
+ _mesa_VertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), intel->clear.vertices);
+ _mesa_Enable(GL_COLOR_ARRAY);
+ _mesa_Enable(GL_VERTEX_ARRAY);
+
+ /* restore original array object */
+ _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, arraySave);
+ _mesa_reference_array_object(ctx, &arraySave, NULL);
+
+ /* restore original buffer objects */
+ _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, arrayBuffer);
+ _mesa_BindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, elementBuffer);
+}
+
+
+
/**
* Perform glClear where mask contains only color, depth, and/or stencil.
*
@@ -77,14 +118,16 @@ void
intel_clear_tris(GLcontext *ctx, GLbitfield mask)
{
struct intel_context *intel = intel_context(ctx);
- GLfloat vertices[4][3];
- GLfloat color[4][4];
GLfloat dst_z;
struct gl_framebuffer *fb = ctx->DrawBuffer;
int i;
GLboolean saved_fp_enable = GL_FALSE, saved_vp_enable = GL_FALSE;
GLuint saved_shader_program = 0;
unsigned int saved_active_texture;
+ struct gl_array_object *arraySave = NULL;
+
+ if (!intel->clear.arrayObj)
+ init_clear(ctx);
assert((mask & ~(TRI_CLEAR_COLOR_BITS | BUFFER_BIT_DEPTH |
BUFFER_BIT_STENCIL)) == 0);
@@ -93,10 +136,10 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
GL_CURRENT_BIT |
GL_DEPTH_BUFFER_BIT |
GL_ENABLE_BIT |
+ GL_POLYGON_BIT |
GL_STENCIL_BUFFER_BIT |
GL_TRANSFORM_BIT |
GL_CURRENT_BIT);
- _mesa_PushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
saved_active_texture = ctx->Texture.CurrentUnit;
/* Disable existing GL state we don't want to apply to a clear. */
@@ -114,6 +157,7 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
_mesa_Disable(GL_CLIP_PLANE3);
_mesa_Disable(GL_CLIP_PLANE4);
_mesa_Disable(GL_CLIP_PLANE5);
+ _mesa_PolygonMode(GL_FRONT_AND_BACK, GL_FILL);
if (ctx->Extensions.ARB_fragment_program && ctx->FragmentProgram.Enabled) {
saved_fp_enable = GL_TRUE;
_mesa_Disable(GL_FRAGMENT_PROGRAM_ARB);
@@ -146,13 +190,14 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
}
}
+ /* save current array object, bind our private one */
+ _mesa_reference_array_object(ctx, &arraySave, ctx->Array.ArrayObj);
+ _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, intel->clear.arrayObj);
+
intel_meta_set_passthrough_transform(intel);
for (i = 0; i < 4; i++) {
- color[i][0] = ctx->Color.ClearColor[0];
- color[i][1] = ctx->Color.ClearColor[1];
- color[i][2] = ctx->Color.ClearColor[2];
- color[i][3] = ctx->Color.ClearColor[3];
+ COPY_4FV(intel->clear.color[i], ctx->Color.ClearColor);
}
/* convert clear Z from [0,1] to NDC coord in [-1,1] */
@@ -161,23 +206,18 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
/* Prepare the vertices, which are the same regardless of which buffer we're
* drawing to.
*/
- vertices[0][0] = fb->_Xmin;
- vertices[0][1] = fb->_Ymin;
- vertices[0][2] = dst_z;
- vertices[1][0] = fb->_Xmax;
- vertices[1][1] = fb->_Ymin;
- vertices[1][2] = dst_z;
- vertices[2][0] = fb->_Xmax;
- vertices[2][1] = fb->_Ymax;
- vertices[2][2] = dst_z;
- vertices[3][0] = fb->_Xmin;
- vertices[3][1] = fb->_Ymax;
- vertices[3][2] = dst_z;
-
- _mesa_ColorPointer(4, GL_FLOAT, 4 * sizeof(GLfloat), &color);
- _mesa_VertexPointer(3, GL_FLOAT, 3 * sizeof(GLfloat), &vertices);
- _mesa_Enable(GL_COLOR_ARRAY);
- _mesa_Enable(GL_VERTEX_ARRAY);
+ intel->clear.vertices[0][0] = fb->_Xmin;
+ intel->clear.vertices[0][1] = fb->_Ymin;
+ intel->clear.vertices[0][2] = dst_z;
+ intel->clear.vertices[1][0] = fb->_Xmax;
+ intel->clear.vertices[1][1] = fb->_Ymin;
+ intel->clear.vertices[1][2] = dst_z;
+ intel->clear.vertices[2][0] = fb->_Xmax;
+ intel->clear.vertices[2][1] = fb->_Ymax;
+ intel->clear.vertices[2][2] = dst_z;
+ intel->clear.vertices[3][0] = fb->_Xmin;
+ intel->clear.vertices[3][1] = fb->_Ymax;
+ intel->clear.vertices[3][2] = dst_z;
while (mask != 0) {
GLuint this_mask = 0;
@@ -215,14 +255,16 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
/* Control writing of the stencil clear value to stencil. */
if (this_mask & BUFFER_BIT_STENCIL) {
_mesa_Enable(GL_STENCIL_TEST);
- _mesa_StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
- _mesa_StencilFuncSeparate(GL_FRONT, GL_ALWAYS, ctx->Stencil.Clear,
+ _mesa_StencilOpSeparate(GL_FRONT_AND_BACK,
+ GL_REPLACE, GL_REPLACE, GL_REPLACE);
+ _mesa_StencilFuncSeparate(GL_FRONT_AND_BACK, GL_ALWAYS,
+ ctx->Stencil.Clear,
ctx->Stencil.WriteMask[0]);
} else {
_mesa_Disable(GL_STENCIL_TEST);
}
- CALL_DrawArrays(ctx->Exec, (GL_TRIANGLE_FAN, 0, 4));
+ _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
mask &= ~this_mask;
}
@@ -238,8 +280,11 @@ intel_clear_tris(GLcontext *ctx, GLbitfield mask)
if (saved_shader_program)
_mesa_UseProgramObjectARB(saved_shader_program);
- _mesa_PopClientAttrib();
_mesa_PopAttrib();
+
+ /* restore current array object */
+ _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj, arraySave);
+ _mesa_reference_array_object(ctx, &arraySave, NULL);
}
static const char *buffer_names[] = {
@@ -247,13 +292,10 @@ static const char *buffer_names[] = {
[BUFFER_BACK_LEFT] = "back",
[BUFFER_FRONT_RIGHT] = "front right",
[BUFFER_BACK_RIGHT] = "back right",
- [BUFFER_AUX0] = "aux0",
- [BUFFER_AUX1] = "aux1",
- [BUFFER_AUX2] = "aux2",
- [BUFFER_AUX3] = "aux3",
[BUFFER_DEPTH] = "depth",
[BUFFER_STENCIL] = "stencil",
[BUFFER_ACCUM] = "accum",
+ [BUFFER_AUX0] = "aux0",
[BUFFER_COLOR0] = "color0",
[BUFFER_COLOR1] = "color1",
[BUFFER_COLOR2] = "color2",
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-28 18:03:57 +0000