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vbo: add comments, const qualifiers 

Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2013-05-03 19:00:07 -06:00
parent 0baf32508a
commit 76084907fb
2 changed files with 24 additions and 9 deletions
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8
src/mesa/vbo/vbo_save.h
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@ -126,10 +126,10 @@ struct vbo_save_context {
struct gl_client_array arrays[VBO_ATTRIB_MAX];
const struct gl_client_array *inputs[VBO_ATTRIB_MAX];
GLubyte attrsz[VBO_ATTRIB_MAX];
GLenum attrtype[VBO_ATTRIB_MAX];
GLubyte active_sz[VBO_ATTRIB_MAX];
GLuint vertex_size;
GLubyte attrsz[VBO_ATTRIB_MAX]; /**< 1, 2, 3 or 4 */
GLenum attrtype[VBO_ATTRIB_MAX]; /**< GL_FLOAT, GL_INT, etc */
GLubyte active_sz[VBO_ATTRIB_MAX]; /**< 1, 2, 3 or 4 */
GLuint vertex_size; /**< size in GLfloats */
GLboolean out_of_memory; /**< True if last VBO allocation failed */

25
src/mesa/vbo/vbo_save_api.c
View File

@ -469,6 +469,8 @@ _save_compile_vertex_list(struct gl_context *ctx)
/**
* This is called when we fill a vertex buffer before we hit a glEnd().
* We
* TODO -- If no new vertices have been stored, don't bother saving it.
*/
static void
@ -577,7 +579,11 @@ _save_copy_from_current(struct gl_context *ctx)
}
/* Flush existing data, set new attrib size, replay copied vertices.
/**
* Called when we increase the size of a vertex attribute. For example,
* if we've seen one or more glTexCoord2f() calls and now we get a
* glTexCoord3f() call.
* Flush existing data, set new attrib size, replay copied vertices.
*/
static void
_save_upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
@ -634,7 +640,7 @@ _save_upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
* and will need fixup at runtime.
*/
if (save->copied.nr) {
GLfloat *data = save->copied.buffer;
const GLfloat *data = save->copied.buffer;
GLfloat *dest = save->buffer;
GLuint j;
@ -676,6 +682,11 @@ _save_upgrade_vertex(struct gl_context *ctx, GLuint attr, GLuint newsz)
}
/**
* This is called when the size of a vertex attribute changes.
* For example, after seeing one or more glTexCoord2f() calls we
* get a glTexCoord4f() or glTexCoord1f() call.
*/
static void
save_fixup_vertex(struct gl_context *ctx, GLuint attr, GLuint sz)
{
@ -702,6 +713,11 @@ save_fixup_vertex(struct gl_context *ctx, GLuint attr, GLuint sz)
}
/**
* Reset the current size of all vertex attributes to the default
* value of 0. This signals that we haven't yet seen any per-vertex
* commands such as glNormal3f() or glTexCoord2f().
*/
static void
_save_reset_vertex(struct gl_context *ctx)
{
@ -933,8 +949,7 @@ GLboolean
vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode)
{
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLuint i = save->prim_count++;
const GLuint i = save->prim_count++;
assert(i < save->prim_max);
save->prim[i].mode = mode & VBO_SAVE_PRIM_MODE_MASK;
@ -971,7 +986,7 @@ _save_End(void)
{
GET_CURRENT_CONTEXT(ctx);
struct vbo_save_context *save = &vbo_context(ctx)->save;
GLint i = save->prim_count - 1;
const GLint i = save->prim_count - 1;
ctx->Driver.CurrentSavePrimitive = PRIM_OUTSIDE_BEGIN_END;
save->prim[i].end = 1;