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authorBrian <brian.paul@tungstengraphics.com>2007-06-29 13:03:01 -0600
committerBrian <brian.paul@tungstengraphics.com>2007-06-29 13:03:01 -0600
commite62cf5c69ab605b78324639f5455ac9921e68dba (patch)
tree7301c5f6027f63c2f3dec16c439bbc30f69c7cca /src/mesa/pipe
parent48076dc784c910dfee1ebaa6970375495209b839 (diff)
more work on tex objects, surfaces, mappable buffers
Diffstat (limited to 'src/mesa/pipe')
-rw-r--r--src/mesa/pipe/p_state.h84
1 files changed, 65 insertions, 19 deletions
diff --git a/src/mesa/pipe/p_state.h b/src/mesa/pipe/p_state.h
index e0fa4d54c3..6a9a86fa97 100644
--- a/src/mesa/pipe/p_state.h
+++ b/src/mesa/pipe/p_state.h
@@ -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
+ ***/
+
+
+/**
+ * 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
+};
+
+
/**
- * XXX rough approximation...
+ * 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);
};