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mesa: allow setting of patch parameters.

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Based on a patch from Fabian Bieler <fabianbieler@fastmail.fm>.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Marek Olšák 2015-06-13 23:06:06 +02:00
parent e32e546c17
commit cb0c12512c
2 changed files with 47 additions and 2 deletions
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5
src/mesa/main/mtypes.h
View file

@ -4161,6 +4161,11 @@ struct gl_driver_flags
* gl_context::ImageUnits
*/
uint64_t NewImageUnits;
/**
* gl_context::TessCtrlProgram::patch_default_*
*/
uint64_t NewDefaultTessLevels;
};
struct gl_uniform_buffer_binding

44
src/mesa/main/shaderapi.c
View file

@ -1999,13 +1999,53 @@ _mesa_CreateShaderProgramv(GLenum type, GLsizei count,
extern void GLAPIENTRY
_mesa_PatchParameteri(GLenum pname, GLint value)
{
/* STUB */
GET_CURRENT_CONTEXT(ctx);
if (!_mesa_has_tessellation(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glPatchParameteri");
return;
}
if (pname != GL_PATCH_VERTICES) {
_mesa_error(ctx, GL_INVALID_ENUM, "glPatchParameteri");
return;
}
if (value <= 0 || value > ctx->Const.MaxPatchVertices) {
_mesa_error(ctx, GL_INVALID_VALUE, "glPatchParameteri");
return;
}
ctx->TessCtrlProgram.patch_vertices = value;
}
extern void GLAPIENTRY
_mesa_PatchParameterfv(GLenum pname, const GLfloat *values)
{
/* STUB */
GET_CURRENT_CONTEXT(ctx);
if (!_mesa_has_tessellation(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glPatchParameterfv");
return;
}
switch(pname) {
case GL_PATCH_DEFAULT_OUTER_LEVEL:
FLUSH_VERTICES(ctx, 0);
memcpy(ctx->TessCtrlProgram.patch_default_outer_level, values,
4 * sizeof(GLfloat));
ctx->NewDriverState |= ctx->DriverFlags.NewDefaultTessLevels;
return;
case GL_PATCH_DEFAULT_INNER_LEVEL:
FLUSH_VERTICES(ctx, 0);
memcpy(ctx->TessCtrlProgram.patch_default_inner_level, values,
2 * sizeof(GLfloat));
ctx->NewDriverState |= ctx->DriverFlags.NewDefaultTessLevels;
return;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glPatchParameterfv");
return;
}
}