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[cogl-vertex-buffer] Seal GL types from the public API

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We now have CoglAttributeType and CoglVerticesMode typedefs to replace the
use of GLenum in the public API.
This commit is contained in:
Robert Bragg 2009-05-24 11:33:29 +01:00
parent 58b89eabdf
commit e4d820b75d
2 changed files with 93 additions and 73 deletions
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118
cogl-vertex-buffer.h
View File

@ -94,6 +94,24 @@ cogl_vertex_buffer_new (guint n_vertices);
guint guint
cogl_vertex_buffer_get_n_vertices (CoglHandle handle); cogl_vertex_buffer_get_n_vertices (CoglHandle handle);
/**
* CoglAttributeType:
* @COGL_ATTRIBUTE_TYPE_BYTE:
* @COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE:
* @COGL_ATTRIBUTE_TYPE_SHORT:
* @COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT:
* @COGL_ATTRIBUTE_TYPE_FLOAT:
*
*/
typedef enum _CoglAttributeType
{
COGL_ATTRIBUTE_TYPE_BYTE = GL_BYTE,
COGL_ATTRIBUTE_TYPE_UNSIGNED_BYTE = GL_UNSIGNED_BYTE,
COGL_ATTRIBUTE_TYPE_SHORT = GL_SHORT,
COGL_ATTRIBUTE_TYPE_UNSIGNED_SHORT = GL_UNSIGNED_SHORT,
COGL_ATTRIBUTE_TYPE_FLOAT = GL_FLOAT
} CoglAttributeType;
/** /**
* cogl_vertex_buffer_add: * cogl_vertex_buffer_add:
* @handle: A vertex buffer handle * @handle: A vertex buffer handle
@ -111,10 +129,9 @@ cogl_vertex_buffer_get_n_vertices (CoglHandle handle);
* the name can have a detail component, E.g. * the name can have a detail component, E.g.
* "gl_Color::active" or "gl_Color::inactive" * "gl_Color::active" or "gl_Color::inactive"
* @n_components: The number of components per attribute and must be 1,2,3 or 4 * @n_components: The number of components per attribute and must be 1,2,3 or 4
* @gl_type: Specifies the data type of each component (GL_BYTE, GL_UNSIGNED_BYTE, * @type: a #CoglAttributeType specifying the data type of each component.
* GL_SHORT, GL_UNSIGNED_SHORT, GL_INT, GL_UNSIGNED_INT or GL_FLOAT)
* @normalized: If GL_TRUE, this specifies that values stored in an integer * @normalized: If GL_TRUE, this specifies that values stored in an integer
* format should be mapped into the range [-1.0, 1.0] or [0.1, 1.0] * format should be mapped into the range [-1.0, 1.0] or [0.0, 1.0]
* for unsigned values. If GL_FALSE they are converted to floats * for unsigned values. If GL_FALSE they are converted to floats
* directly. * directly.
* @stride: This specifies the number of bytes from the start of one attribute * @stride: This specifies the number of bytes from the start of one attribute
@ -156,13 +173,13 @@ cogl_vertex_buffer_get_n_vertices (CoglHandle handle);
* (Though you can have multiple groups of interleved attributes) * (Though you can have multiple groups of interleved attributes)
*/ */
void void
cogl_vertex_buffer_add (CoglHandle handle, cogl_vertex_buffer_add (CoglHandle handle,
const char *attribute_name, const char *attribute_name,
guint8 n_components, guint8 n_components,
GLenum gl_type, CoglAttributeType type,
gboolean normalized, gboolean normalized,
guint16 stride, guint16 stride,
const void *pointer); const void *pointer);
/** /**
* cogl_vertex_buffer_delete: * cogl_vertex_buffer_delete:
@ -226,21 +243,33 @@ void
cogl_vertex_buffer_enable (CoglHandle handle, cogl_vertex_buffer_enable (CoglHandle handle,
const char *attribute_name); const char *attribute_name);
/**
* CoglVerticesMode:
* COGL_VERTICES_MODE_POINTS:
* COGL_VERTICES_MODE_LINE_STRIP:
* COGL_VERTICES_MODE_LINE_LOOP:
* COGL_VERTICES_MODE_LINES:
* COGL_VERTICES_MODE_TRIANGLE_STRIP:
* COGL_VERTICES_MODE_TRIANGLE_FAN:
* COGL_VERTICES_MODE_TRIANGLES:
*
*/
typedef enum _CoglVerticesMode
{
COGL_VERTICES_MODE_POINTS = GL_POINTS,
COGL_VERTICES_MODE_LINE_STRIP = GL_LINE_STRIP,
COGL_VERTICES_MODE_LINE_LOOP = GL_LINE_LOOP,
COGL_VERTICES_MODE_LINES = GL_LINES,
COGL_VERTICES_MODE_TRIANGLE_STRIP = GL_TRIANGLE_STRIP,
COGL_VERTICES_MODE_TRIANGLE_FAN = GL_TRIANGLE_FAN,
COGL_VERTICES_MODE_TRIANGLES = GL_TRIANGLES
} CoglVerticesMode;
/** /**
* cogl_vertex_buffer_draw: * cogl_vertex_buffer_draw:
* @handle: A vertex buffer handle * @handle: A vertex buffer handle
* @mode: Specifies how the vertices should be interpreted, and should be * @mode: A #CoglVerticesMode specifying how the vertices should be
* a valid GL primitive type: * interpreted.
* <itemizedlist>
* <listitem>GL_POINTS</listitem>
* <listitem>GL_LINE_STRIP</listitem>
* <listitem>GL_LINE_LOOP</listitem>
* <listitem>GL_LINES</listitem>
* <listitem>GL_TRIANGLE_STRIP</listitem>
* <listitem>GL_TRIANGLE_FAN</listitem>
* <listitem>GL_TRIANGLES</listitem>
* </itemizedlist>
* (Note: only types available in GLES are listed)
* @first: Specifies the index of the first vertex you want to draw with * @first: Specifies the index of the first vertex you want to draw with
* @count: Specifies the number of vertices you want to draw. * @count: Specifies the number of vertices you want to draw.
* *
@ -251,10 +280,10 @@ cogl_vertex_buffer_enable (CoglHandle handle,
* drawing. * drawing.
*/ */
void void
cogl_vertex_buffer_draw (CoglHandle handle, cogl_vertex_buffer_draw (CoglHandle handle,
GLenum mode, CoglVerticesMode mode,
GLint first, int first,
GLsizei count); int count);
/** /**
* CoglIndicesType: * CoglIndicesType:
@ -296,28 +325,19 @@ typedef enum _CoglIndicesType
* the indices and reduce the demand for memory bandwidth. * the indices and reduce the demand for memory bandwidth.
*/ */
void void
cogl_vertex_buffer_add_indices (CoglHandle handle, cogl_vertex_buffer_add_indices (CoglHandle handle,
int id, int id,
unsigned int min_index, int min_index,
unsigned int max_index, int max_index,
CoglIndicesType indices_type, CoglIndicesType indices_type,
const void *indices_array, const void *indices_array,
size_t indices_len); int indices_len);
/** /**
* cogl_vertex_buffer_draw_elements: * cogl_vertex_buffer_draw_elements:
* @handle: A vertex buffer handle * @handle: A vertex buffer handle
* @mode: Specifies how the vertices should be interpreted, and should be * @mode: A #CoglVerticesMode specifying how the vertices should be
* a valid GL primitive type: * interpreted.
* <itemizedlist>
* <listitem>GL_POINTS</listitem>
* <listitem>GL_LINE_STRIP</listitem>
* <listitem>GL_LINE_LOOP</listitem>
* <listitem>GL_LINES</listitem>
* <listitem>GL_TRIANGLE_STRIP</listitem>
* <listitem>GL_TRIANGLE_FAN</listitem>
* <listitem>GL_TRIANGLES</listitem>
* </itemizedlist>
* @indices_id: The identifier for a an array of indices previously added to * @indices_id: The identifier for a an array of indices previously added to
* the given Cogl vertex buffer using * the given Cogl vertex buffer using
* cogl_vertex_buffer_add_indices(). * cogl_vertex_buffer_add_indices().
@ -333,11 +353,11 @@ cogl_vertex_buffer_add_indices (CoglHandle handle,
* drawing. * drawing.
*/ */
void void
cogl_vertex_buffer_draw_elements (CoglHandle handle, cogl_vertex_buffer_draw_elements (CoglHandle handle,
GLenum mode, CoglVerticesMode mode,
int indices_id, int indices_id,
unsigned int indices_offset, int indices_offset,
unsigned int count); int count);
/** /**
* cogl_vertex_buffer_ref: * cogl_vertex_buffer_ref:

48
common/cogl-vertex-buffer.c
View File

@ -414,13 +414,13 @@ get_gl_type_size (CoglVertexBufferAttribFlags flags)
} }
void void
cogl_vertex_buffer_add (CoglHandle handle, cogl_vertex_buffer_add (CoglHandle handle,
const char *attribute_name, const char *attribute_name,
guint8 n_components, guint8 n_components,
GLenum gl_type, CoglAttributeType type,
gboolean normalized, gboolean normalized,
guint16 stride, guint16 stride,
const void *pointer) const void *pointer)
{ {
CoglVertexBuffer *buffer; CoglVertexBuffer *buffer;
GQuark name_quark = g_quark_from_string (attribute_name); GQuark name_quark = g_quark_from_string (attribute_name);
@ -488,7 +488,7 @@ cogl_vertex_buffer_add (CoglHandle handle,
attribute->u.pointer = pointer; attribute->u.pointer = pointer;
attribute->texture_unit = texture_unit; attribute->texture_unit = texture_unit;
flags |= get_attribute_gl_type_flag_from_gl_type (gl_type); flags |= get_attribute_gl_type_flag_from_gl_type (type);
flags |= COGL_VERTEX_BUFFER_ATTRIB_FLAG_ENABLED; flags |= COGL_VERTEX_BUFFER_ATTRIB_FLAG_ENABLED;
/* Note: We currently just assume, if an attribute is *ever* updated /* Note: We currently just assume, if an attribute is *ever* updated
@ -1719,10 +1719,10 @@ disable_state_for_drawing_buffer (CoglVertexBuffer *buffer)
} }
void void
cogl_vertex_buffer_draw (CoglHandle handle, cogl_vertex_buffer_draw (CoglHandle handle,
GLenum mode, CoglVerticesMode mode,
GLint first, int first,
GLsizei count) int count)
{ {
CoglVertexBuffer *buffer; CoglVertexBuffer *buffer;
@ -1772,13 +1772,13 @@ get_indices_type_size (GLuint indices_type)
} }
void void
cogl_vertex_buffer_add_indices (CoglHandle handle, cogl_vertex_buffer_add_indices (CoglHandle handle,
int id, int id,
unsigned int min_index, int min_index,
unsigned int max_index, int max_index,
CoglIndicesType indices_type, CoglIndicesType indices_type,
const void *indices_array, const void *indices_array,
size_t indices_len) int indices_len)
{ {
CoglVertexBuffer *buffer; CoglVertexBuffer *buffer;
GList *l; GList *l;
@ -1843,11 +1843,11 @@ cogl_vertex_buffer_add_indices (CoglHandle handle,
} }
void void
cogl_vertex_buffer_draw_elements (CoglHandle handle, cogl_vertex_buffer_draw_elements (CoglHandle handle,
GLenum mode, CoglVerticesMode mode,
int indices_id, int indices_id,
unsigned int indices_offset, int indices_offset,
unsigned int count) int count)
{ {
CoglVertexBuffer *buffer; CoglVertexBuffer *buffer;
gboolean fallback = gboolean fallback =