OpenHarmony/third_party_mesa3d
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Y invert, clean-up

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This commit is contained in:
Brian
2007-08-10 16:25:21 -06:00
parent 717831ea71
commit 1c8bcc733d
1 changed files with 74 additions and 82 deletions
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70
src/mesa/state_tracker/st_cb_clear.c
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@@ -198,26 +198,29 @@ draw_quad(GLcontext *ctx,
/**
* Do glClear by drawing a quadrilateral.
* The vertices of the quad will be computed from the
* ctx->DrawBuffer->_X/Ymin/max fields.
*/
static void
clear_with_quad(GLcontext *ctx, GLuint x0, GLuint y0,
GLuint x1, GLuint y1,
clear_with_quad(GLcontext *ctx,
GLboolean color, GLboolean depth, GLboolean stencil)
{
static struct st_fragment_program *stfp = NULL;
struct st_context *st = ctx->st;
struct pipe_alpha_test_state alpha_test;
struct pipe_blend_state blend;
struct pipe_depth_state depth_test;
struct pipe_stencil_state stencil_test;
struct pipe_setup_state setup;
struct pipe_fs_state fs;
const GLfloat x0 = ctx->DrawBuffer->_Xmin;
const GLfloat y0 = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymax;
const GLfloat x1 = ctx->DrawBuffer->_Xmax;
const GLfloat y1 = ctx->DrawBuffer->Height - ctx->DrawBuffer->_Ymin;
/* alpha state: disabled */
{
struct pipe_alpha_test_state alpha_test;
memset(&alpha_test, 0, sizeof(alpha_test));
st->pipe->set_alpha_test_state(st->pipe, &alpha_test);
}
/* blend state: RGBA masking */
{
struct pipe_blend_state blend;
memset(&blend, 0, sizeof(blend));
if (color) {
if (ctx->Color.ColorMask[0])
@@ -232,8 +235,11 @@ clear_with_quad(GLcontext *ctx, GLuint x0, GLuint y0,
blend.dither = 1;
}
st->pipe->set_blend_state(st->pipe, &blend);
}
/* depth state: always pass */
{
struct pipe_depth_state depth_test;
memset(&depth_test, 0, sizeof(depth_test));
if (depth) {
depth_test.enabled = 1;
@@ -241,14 +247,20 @@ clear_with_quad(GLcontext *ctx, GLuint x0, GLuint y0,
depth_test.func = PIPE_FUNC_ALWAYS;
}
st->pipe->set_depth_state(st->pipe, &depth_test);
}
/* setup state: nothing */
{
struct pipe_setup_state setup;
memset(&setup, 0, sizeof(setup));
if (ctx->Scissor.Enabled)
setup.scissor = 1;
st->pipe->set_setup_state(st->pipe, &setup);
}
/* stencil state: always set to ref value */
{
struct pipe_stencil_state stencil_test;
memset(&stencil_test, 0, sizeof(stencil_test));
if (stencil) {
stencil_test.front_enabled = 1;
@@ -261,8 +273,12 @@ clear_with_quad(GLcontext *ctx, GLuint x0, GLuint y0,
stencil_test.write_mask[0] = ctx->Stencil.WriteMask[0] & 0xff;
}
st->pipe->set_stencil_state(st->pipe, &stencil_test);
}
/* fragment shader state: color pass-through program */
{
static struct st_fragment_program *stfp = NULL;
struct pipe_fs_state fs;
if (!stfp) {
stfp = make_color_shader(st);
}
@@ -271,6 +287,7 @@ clear_with_quad(GLcontext *ctx, GLuint x0, GLuint y0,
fs.tokens = &stfp->tokens[0];
fs.constants = NULL;
st->pipe->set_fs_state(st->pipe, &fs);
}
/* draw quad matching scissor rect (XXX verify coord round-off) */
draw_quad(ctx, x0, y0, x1, y1, ctx->Depth.Clear, ctx->Color.ClearColor);
@@ -306,12 +323,7 @@ clear_color_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
}
else {
/* masking or scissoring */
clear_with_quad(ctx,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmax,
ctx->DrawBuffer->_Ymax,
GL_TRUE, GL_FALSE, GL_FALSE);
clear_with_quad(ctx, GL_TRUE, GL_FALSE, GL_FALSE);
}
}
@@ -333,12 +345,7 @@ clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
else {
/* scissoring */
/* XXX point framebuffer.cbufs[0] at the accum buffer */
clear_with_quad(ctx,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmax,
ctx->DrawBuffer->_Ymax,
GL_TRUE, GL_FALSE, GL_FALSE);
clear_with_quad(ctx, GL_TRUE, GL_FALSE, GL_FALSE);
}
}
@@ -356,12 +363,7 @@ clear_depth_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
}
else {
/* masking or scissoring or combined z/stencil buffer */
clear_with_quad(ctx,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmax,
ctx->DrawBuffer->_Ymax,
GL_FALSE, GL_TRUE, GL_FALSE);
clear_with_quad(ctx, GL_FALSE, GL_TRUE, GL_FALSE);
}
}
@@ -381,12 +383,7 @@ clear_stencil_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
}
else {
/* masking or scissoring */
clear_with_quad(ctx,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmax,
ctx->DrawBuffer->_Ymax,
GL_FALSE, GL_FALSE, GL_TRUE);
clear_with_quad(ctx, GL_FALSE, GL_FALSE, GL_TRUE);
}
}
@@ -421,12 +418,7 @@ clear_depth_stencil_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
}
else {
/* masking or scissoring */
clear_with_quad(ctx,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmin,
ctx->DrawBuffer->_Xmax,
ctx->DrawBuffer->_Ymax,
GL_FALSE, GL_TRUE, GL_TRUE);
clear_with_quad(ctx, GL_FALSE, GL_TRUE, GL_TRUE);
}
}