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mesa: add clear_bufferi() helper

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
This commit is contained in:
Samuel Pitoiset 2017-07-21 14:19:27 +02:00
parent 5e05e7debc
commit 1ed61e0239
1 changed files with 30 additions and 20 deletions
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50
src/mesa/main/clear.c
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@ -622,33 +622,34 @@ _mesa_ClearNamedFramebufferfv(GLuint framebuffer, GLenum buffer,
* New in GL 3.0
* Clear depth/stencil buffer only.
*/
void GLAPIENTRY
_mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
GLfloat depth, GLint stencil)
static ALWAYS_INLINE void
clear_bufferfi(struct gl_context *ctx, GLenum buffer, GLint drawbuffer,
GLfloat depth, GLint stencil, bool no_error)
{
GET_CURRENT_CONTEXT(ctx);
GLbitfield mask = 0;
FLUSH_VERTICES(ctx, 0);
FLUSH_CURRENT(ctx, 0);
if (buffer != GL_DEPTH_STENCIL) {
_mesa_error(ctx, GL_INVALID_ENUM, "glClearBufferfi(buffer=%s)",
_mesa_enum_to_string(buffer));
return;
}
if (!no_error) {
if (buffer != GL_DEPTH_STENCIL) {
_mesa_error(ctx, GL_INVALID_ENUM, "glClearBufferfi(buffer=%s)",
_mesa_enum_to_string(buffer));
return;
}
/* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
*
* "ClearBuffer generates an INVALID VALUE error if buffer is
* COLOR and drawbuffer is less than zero, or greater than the
* value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
* STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
*/
if (drawbuffer != 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glClearBufferfi(drawbuffer=%d)",
drawbuffer);
return;
/* Page 264 (page 280 of the PDF) of the OpenGL 3.0 spec says:
*
* "ClearBuffer generates an INVALID VALUE error if buffer is
* COLOR and drawbuffer is less than zero, or greater than the
* value of MAX DRAW BUFFERS minus one; or if buffer is DEPTH,
* STENCIL, or DEPTH STENCIL and drawbuffer is not zero."
*/
if (drawbuffer != 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glClearBufferfi(drawbuffer=%d)",
drawbuffer);
return;
}
}
if (ctx->RasterDiscard)
@ -682,6 +683,15 @@ _mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
}
void GLAPIENTRY
_mesa_ClearBufferfi(GLenum buffer, GLint drawbuffer,
GLfloat depth, GLint stencil)
{
GET_CURRENT_CONTEXT(ctx);
clear_bufferfi(ctx, buffer, drawbuffer, depth, stencil, false);
}
/**
* The ClearBuffer framework is so complicated and so riddled with the
* assumption that the framebuffer is bound that, for now, we will just fake