OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

more work on tex objects, surfaces, mappable buffers

Browse Source
This commit is contained in:
Brian
2007-06-29 13:03:01 -06:00
parent 48076dc784
commit e62cf5c69a
1 changed files with 65 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

84
src/mesa/pipe/p_state.h
View File

@@ -50,6 +50,14 @@
#define PIPE_MAX_CONSTANT 32
/* fwd decl */
struct pipe_surface;
/***
*** State objects
***/
/**
* Primitive (point/line/tri) setup info
@@ -164,29 +172,17 @@ struct pipe_stencil_state {
GLuint front_zpass_op:3; /**< PIPE_STENCIL_OP_x */
GLuint front_zfail_op:3; /**< PIPE_STENCIL_OP_x */
GLuint back_enabled:1;
GLuint back_func:3;
GLuint back_fail_op:3;
GLuint back_zpass_op:3;
GLuint back_zfail_op:3;
GLubyte ref_value[2]; /**< [0] = front, [1] = back */
GLuint back_func:3; /**< PIPE_FUNC_x */
GLuint back_fail_op:3; /**< PIPE_STENCIL_OP_x */
GLuint back_zpass_op:3; /**< PIPE_STENCIL_OP_x */
GLuint back_zfail_op:3; /**< PIPE_STENCIL_OP_x */
GLubyte ref_value[2]; /**< [0] = front, [1] = back */
GLubyte value_mask[2];
GLubyte write_mask[2];
GLubyte clear_value;
};
/* This will change for hardware pipes...
*/
struct pipe_surface
{
GLuint width, height;
GLubyte *ptr;
GLint stride;
GLuint cpp;
GLuint format;
};
struct pipe_framebuffer_state
{
GLuint num_cbufs; /**< Number of color bufs to draw to */
@@ -223,16 +219,66 @@ struct pipe_sampler_state
};
/***
*** Non-state Objects
***/
/**
* XXX rough approximation...
* A mappable buffer (vertex data, pixel data, etc)
*/
struct pipe_buffer
{
void *(*map)(struct pipe_buffer *pb, GLuint access_mode);
void (*unmap)(struct pipe_buffer *pb);
void *ptr; /**< address, only valid while mapped */
GLuint mode; /**< PIPE_MAP_x, only valid while mapped */
};
/**
* 2D surface.
* May be a renderbuffer, texture mipmap level, etc.
*/
struct pipe_surface
{
struct pipe_buffer buffer; /**< surfaces can be mapped */
GLuint format:5; /**< PIPE_FORMAT_x */
GLuint width, height;
#if 0
GLubyte *ptr;
GLint stride;
GLuint cpp;
GLuint format;
#endif
};
/**
* Texture object.
* Mipmap levels, cube faces, 3D slices can be accessed as surfaces.
*/
struct pipe_texture_object
{
GLuint type:2; /**< PIPE_TEXTURE_x */
GLuint format:5; /**< PIPE_FORMAT_x */
GLuint width:13; /**< 13 bits = 8K max size */
GLuint height:13;
GLuint depth:13;
GLubyte *data; /**< only valid while buffer mapped? */
GLuint mipmapped:1;
/** to access a 1D or 2D texture object as a surface */
struct pipe_surface *(*get_2d_surface)(struct pipe_texture_object *pto,
GLuint level);
/** to access a 3D texture object as a surface */
struct pipe_surface *(*get_3d_surface)(struct pipe_texture_object *pto,
GLuint level, GLuint slice);
/** to access a cube texture object as a surface */
struct pipe_surface *(*get_cube_surface)(struct pipe_texture_object *pto,
GLuint face, GLuint level);
/** when finished with surface: */
void (*release_surface)(struct pipe_texture_object *pto,
struct pipe_surface *ps);
};