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attribute: Adds support for constant CoglAttributes

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This makes it possible to create vertex attributes that efficiently
represent constant values without duplicating the constant for every
vertex. This adds the following new constructors for constant
attributes:

  cogl_attribute_new_const_1f
  cogl_attribute_new_const_2fv
  cogl_attribute_new_const_3fv
  cogl_attribute_new_const_4fv
  cogl_attribute_new_const_2f
  cogl_attribute_new_const_3f
  cogl_attribute_new_const_4f
  cogl_attribute_new_const_2x2fv
  cogl_attribute_new_const_3x3fv
  cogl_attribute_new_const_4x4fv

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit 6507216f8030e84dcf2e63b8ecfe906ac47f2ca7)
This commit is contained in:
Robert Bragg 2012-08-06 21:19:27 +01:00
parent 56ae6f9afa
commit 6e379fb54e
5 changed files with 791 additions and 143 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
cogl/cogl-attribute-private.h
View File

@ -32,6 +32,7 @@
#include "cogl-attribute.h"
#include "cogl-framebuffer.h"
#include "cogl-pipeline-private.h"
#include "cogl-boxed-value.h"
typedef enum
{
@ -55,14 +56,25 @@ struct _CoglAttribute
{
CoglObject _parent;
CoglAttributeBuffer *attribute_buffer;
const CoglAttributeNameState *name_state;
size_t stride;
size_t offset;
int n_components;
CoglAttributeType type;
CoglBool normalized;
CoglBool is_buffered;
union {
struct {
CoglAttributeBuffer *attribute_buffer;
size_t stride;
size_t offset;
int n_components;
CoglAttributeType type;
} buffered;
struct {
CoglContext *context;
CoglBoxedValue boxed;
} constant;
} d;
int immutable_ref;
};

316
cogl/cogl-attribute.c
View File

@ -158,6 +158,48 @@ error:
return NULL;
}
static CoglBool
validate_n_components (const CoglAttributeNameState *name_state,
int n_components)
{
switch (name_state->name_id)
{
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
if (G_UNLIKELY (n_components == 1))
{
g_critical ("glVertexPointer doesn't allow 1 component vertex "
"positions so we currently only support \"cogl_vertex\" "
"attributes where n_components == 2, 3 or 4");
return FALSE;
}
break;
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
if (G_UNLIKELY (n_components != 3 && n_components != 4))
{
g_critical ("glColorPointer expects 3 or 4 component colors so we "
"currently only support \"cogl_color\" attributes where "
"n_components == 3 or 4");
return FALSE;
}
break;
case COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY:
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
if (G_UNLIKELY (n_components != 3))
{
g_critical ("glNormalPointer expects 3 component normals so we "
"currently only support \"cogl_normal\" attributes "
"where n_components == 3");
return FALSE;
}
break;
case COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY:
return TRUE;
}
return TRUE;
}
CoglAttribute *
cogl_attribute_new (CoglAttributeBuffer *attribute_buffer,
const char *name,
@ -167,9 +209,10 @@ cogl_attribute_new (CoglAttributeBuffer *attribute_buffer,
CoglAttributeType type)
{
CoglAttribute *attribute = g_slice_new (CoglAttribute);
CoglBuffer *buffer = COGL_BUFFER (attribute_buffer);
CoglContext *ctx = buffer->context;
/* FIXME: retrieve the context from the buffer */
_COGL_GET_CONTEXT (ctx, NULL);
attribute->is_buffered = TRUE;
attribute->name_state =
g_hash_table_lookup (ctx->attribute_name_states_hash, name);
@ -181,50 +224,21 @@ cogl_attribute_new (CoglAttributeBuffer *attribute_buffer,
goto error;
attribute->name_state = name_state;
}
attribute->attribute_buffer = cogl_object_ref (attribute_buffer);
attribute->stride = stride;
attribute->offset = offset;
attribute->n_components = n_components;
attribute->type = type;
attribute->d.buffered.attribute_buffer = cogl_object_ref (attribute_buffer);
attribute->d.buffered.stride = stride;
attribute->d.buffered.offset = offset;
attribute->d.buffered.n_components = n_components;
attribute->d.buffered.type = type;
attribute->immutable_ref = 0;
if (attribute->name_state->name_id != COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY)
{
switch (attribute->name_state->name_id)
{
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
if (G_UNLIKELY (n_components == 1))
{
g_critical ("glVertexPointer doesn't allow 1 component vertex "
"positions so we currently only support \"cogl_vertex\" "
"attributes where n_components == 2, 3 or 4");
return FALSE;
}
break;
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
if (G_UNLIKELY (n_components != 3 && n_components != 4))
{
g_critical ("glColorPointer expects 3 or 4 component colors so we "
"currently only support \"cogl_color\" attributes where "
"n_components == 3 or 4");
return FALSE;
}
break;
case COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY:
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
if (G_UNLIKELY (n_components != 3))
{
g_critical ("glNormalPointer expects 3 component normals so we "
"currently only support \"cogl_normal\" attributes "
"where n_components == 3");
return FALSE;
}
break;
default:
g_warn_if_reached ();
}
attribute->normalized = attribute->name_state->normalized_default;
if (!validate_n_components (attribute->name_state, n_components))
return NULL;
attribute->normalized =
attribute->name_state->normalized_default;
}
else
attribute->normalized = FALSE;
@ -236,6 +250,206 @@ error:
return NULL;
}
static CoglAttribute *
_cogl_attribute_new_const (CoglContext *context,
const char *name,
int n_components,
int n_columns,
CoglBool transpose,
const float *value)
{
CoglAttribute *attribute = g_slice_new (CoglAttribute);
attribute->name_state =
g_hash_table_lookup (context->attribute_name_states_hash, name);
if (!attribute->name_state)
{
CoglAttributeNameState *name_state =
_cogl_attribute_register_attribute_name (context, name);
if (!name_state)
goto error;
attribute->name_state = name_state;
}
if (!validate_n_components (attribute->name_state, n_components))
goto error;
attribute->is_buffered = FALSE;
attribute->normalized = FALSE;
attribute->d.constant.context = cogl_object_ref (context);
attribute->d.constant.boxed.v.array = NULL;
if (n_columns == 1)
{
_cogl_boxed_value_set_float (&attribute->d.constant.boxed,
n_components,
1,
value);
}
else
{
/* FIXME: Up until GL[ES] 3 only square matrices were supported
* and we don't currently expose non-square matrices in Cogl.
*/
_COGL_RETURN_VAL_IF_FAIL (n_columns == n_components, NULL);
_cogl_boxed_value_set_matrix (&attribute->d.constant.boxed,
n_columns,
1,
transpose,
value);
}
return _cogl_attribute_object_new (attribute);
error:
_cogl_attribute_free (attribute);
return NULL;
}
CoglAttribute *
cogl_attribute_new_const_1f (CoglContext *context,
const char *name,
float value)
{
return _cogl_attribute_new_const (context,
name,
1, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
&value);
}
CoglAttribute *
cogl_attribute_new_const_2fv (CoglContext *context,
const char *name,
const float *value)
{
return _cogl_attribute_new_const (context,
name,
2, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
value);
}
CoglAttribute *
cogl_attribute_new_const_3fv (CoglContext *context,
const char *name,
const float *value)
{
return _cogl_attribute_new_const (context,
name,
3, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
value);
}
CoglAttribute *
cogl_attribute_new_const_4fv (CoglContext *context,
const char *name,
const float *value)
{
return _cogl_attribute_new_const (context,
name,
4, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
value);
}
CoglAttribute *
cogl_attribute_new_const_2f (CoglContext *context,
const char *name,
float component0,
float component1)
{
float vec2[2] = { component0, component1 };
return _cogl_attribute_new_const (context,
name,
2, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
vec2);
}
CoglAttribute *
cogl_attribute_new_const_3f (CoglContext *context,
const char *name,
float component0,
float component1,
float component2)
{
float vec3[3] = { component0, component1, component2 };
return _cogl_attribute_new_const (context,
name,
3, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
vec3);
}
CoglAttribute *
cogl_attribute_new_const_4f (CoglContext *context,
const char *name,
float component0,
float component1,
float component2,
float component3)
{
float vec4[4] = { component0, component1, component2, component3 };
return _cogl_attribute_new_const (context,
name,
4, /* n_components */
1, /* 1 column vector */
FALSE, /* no transpose */
vec4);
}
CoglAttribute *
cogl_attribute_new_const_2x2fv (CoglContext *context,
const char *name,
const float *matrix2x2,
CoglBool transpose)
{
return _cogl_attribute_new_const (context,
name,
2, /* n_components */
2, /* 2 column vector */
FALSE, /* no transpose */
matrix2x2);
}
CoglAttribute *
cogl_attribute_new_const_3x3fv (CoglContext *context,
const char *name,
const float *matrix3x3,
CoglBool transpose)
{
return _cogl_attribute_new_const (context,
name,
3, /* n_components */
3, /* 3 column vector */
FALSE, /* no transpose */
matrix3x3);
}
CoglAttribute *
cogl_attribute_new_const_4x4fv (CoglContext *context,
const char *name,
const float *matrix4x4,
CoglBool transpose)
{
return _cogl_attribute_new_const (context,
name,
4, /* n_components */
4, /* 4 column vector */
FALSE, /* no transpose */
matrix4x4);
}
CoglBool
cogl_attribute_get_normalized (CoglAttribute *attribute)
{
@ -272,8 +486,9 @@ CoglAttributeBuffer *
cogl_attribute_get_buffer (CoglAttribute *attribute)
{
_COGL_RETURN_VAL_IF_FAIL (cogl_is_attribute (attribute), NULL);
_COGL_RETURN_VAL_IF_FAIL (attribute->is_buffered, NULL);
return attribute->attribute_buffer;
return attribute->d.buffered.attribute_buffer;
}
void
@ -281,40 +496,45 @@ cogl_attribute_set_buffer (CoglAttribute *attribute,
CoglAttributeBuffer *attribute_buffer)
{
_COGL_RETURN_IF_FAIL (cogl_is_attribute (attribute));
_COGL_RETURN_IF_FAIL (attribute->is_buffered);
if (G_UNLIKELY (attribute->immutable_ref))
warn_about_midscene_changes ();
cogl_object_ref (attribute_buffer);
cogl_object_unref (attribute->attribute_buffer);
attribute->attribute_buffer = attribute_buffer;
cogl_object_unref (attribute->d.buffered.attribute_buffer);
attribute->d.buffered.attribute_buffer = attribute_buffer;
}
CoglAttribute *
_cogl_attribute_immutable_ref (CoglAttribute *attribute)
{
CoglBuffer *buffer = COGL_BUFFER (attribute->d.buffered.attribute_buffer);
_COGL_RETURN_VAL_IF_FAIL (cogl_is_attribute (attribute), NULL);
attribute->immutable_ref++;
_cogl_buffer_immutable_ref (COGL_BUFFER (attribute->attribute_buffer));
_cogl_buffer_immutable_ref (buffer);
return attribute;
}
void
_cogl_attribute_immutable_unref (CoglAttribute *attribute)
{
CoglBuffer *buffer = COGL_BUFFER (attribute->d.buffered.attribute_buffer);
_COGL_RETURN_IF_FAIL (cogl_is_attribute (attribute));
_COGL_RETURN_IF_FAIL (attribute->immutable_ref > 0);
attribute->immutable_ref--;
_cogl_buffer_immutable_unref (COGL_BUFFER (attribute->attribute_buffer));
_cogl_buffer_immutable_unref (buffer);
}
static void
_cogl_attribute_free (CoglAttribute *attribute)
{
cogl_object_unref (attribute->attribute_buffer);
cogl_object_unref (attribute->d.buffered.attribute_buffer);
g_slice_free (CoglAttribute, attribute);
}

311
cogl/cogl-attribute.h
View File

@ -141,6 +141,317 @@ cogl_attribute_new (CoglAttributeBuffer *attribute_buffer,
int components,
CoglAttributeType type);
/**
* cogl_attribute_new_const_1f:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @value: The constant value for the attribute
*
* Creates a new, single component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constant @value is a single precision floating point scalar
* which should have a corresponding declaration in GLSL code like:
*
* [|
* attribute float name;
* |]
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant @value.
*/
CoglAttribute *
cogl_attribute_new_const_1f (CoglContext *context,
const char *name,
float value);
/**
* cogl_attribute_new_const_2f:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @constant0: The first component of a 2 component vector
* @constant1: The second component of a 2 component vector
*
* Creates a new, 2 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (@component0, @component1) represent a 2 component
* float vector which should have a corresponding declaration in GLSL
* code like:
*
* [|
* attribute vec2 name;
* |]
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_2f (CoglContext *context,
const char *name,
float component0,
float component1);
/**
* cogl_attribute_new_const_3f:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @constant0: The first component of a 3 component vector
* @constant1: The second component of a 3 component vector
* @constant2: The third component of a 3 component vector
*
* Creates a new, 3 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (@component0, @component1, @component2) represent a 3
* component float vector which should have a corresponding
* declaration in GLSL code like:
*
* [|
* attribute vec3 name;
* |]
*
* unless the built in name "cogl_normal_in" is being used where no
* explicit GLSL declaration need be made.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_3f (CoglContext *context,
const char *name,
float component0,
float component1,
float component2);
/**
* cogl_attribute_new_const_4f:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @constant0: The first component of a 4 component vector
* @constant1: The second component of a 4 component vector
* @constant2: The third component of a 4 component vector
* @constant3: The fourth component of a 4 component vector
*
* Creates a new, 4 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (@component0, @component1, @component2, @constant3)
* represent a 4 component float vector which should have a
* corresponding declaration in GLSL code like:
*
* [|
* attribute vec4 name;
* |]
*
* unless one of the built in names "cogl_color_in",
* "cogl_tex_coord0_in or "cogl_tex_coord1_in" etc is being used where
* no explicit GLSL declaration need be made.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_4f (CoglContext *context,
const char *name,
float component0,
float component1,
float component2,
float component3);
/**
* cogl_attribute_new_const_2fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @value: A pointer to a 2 component float vector
*
* Creates a new, 2 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (value[0], value[1]) represent a 2 component float
* vector which should have a corresponding declaration in GLSL code
* like:
*
* [|
* attribute vec2 name;
* |]
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_2fv (CoglContext *context,
const char *name,
const float *value);
/**
* cogl_attribute_new_const_3fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @value: A pointer to a 3 component float vector
*
* Creates a new, 3 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (value[0], value[1], value[2]) represent a 3
* component float vector which should have a corresponding
* declaration in GLSL code like:
*
* [|
* attribute vec3 name;
* |]
*
* unless the built in name "cogl_normal_in" is being used where no
* explicit GLSL declaration need be made.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_3fv (CoglContext *context,
const char *name,
const float *value);
/**
* cogl_attribute_new_const_4fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @value: A pointer to a 4 component float vector
*
* Creates a new, 4 component, attribute whose value remains
* constant across all the vertices of a primitive without needing to
* duplicate the value for each vertex.
*
* The constants (value[0], value[1], value[2], value[3]) represent a
* 4 component float vector which should have a corresponding
* declaration in GLSL code like:
*
* [|
* attribute vec4 name;
* |]
*
* unless one of the built in names "cogl_color_in",
* "cogl_tex_coord0_in or "cogl_tex_coord1_in" etc is being used where
* no explicit GLSL declaration need be made.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant vector.
*/
CoglAttribute *
cogl_attribute_new_const_4fv (CoglContext *context,
const char *name,
const float *value);
/**
* cogl_attribute_new_const_2x2fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @matrix2x2: A pointer to a 2 by 2 matrix
* @transpose: Whether the matrix should be transposed on upload or
* not
*
* Creates a new matrix attribute whose value remains constant
* across all the vertices of a primitive without needing to duplicate
* the value for each vertex.
*
* @matrix2x2 represent a square 2 by 2 matrix specified in
* column-major order (each pair of consecutive numbers represents a
* column) which should have a corresponding declaration in GLSL code
* like:
*
* [|
* attribute mat2 name;
* |]
*
* If @transpose is %TRUE then all matrix components are rotated
* around the diagonal of the matrix such that the first column
* becomes the first row and the second column becomes the second row.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant matrix.
*/
CoglAttribute *
cogl_attribute_new_const_2x2fv (CoglContext *context,
const char *name,
const float *matrix2x2,
CoglBool transpose);
/**
* cogl_attribute_new_const_3x3fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @matrix3x3: A pointer to a 3 by 3 matrix
* @transpose: Whether the matrix should be transposed on upload or
* not
*
* Creates a new matrix attribute whose value remains constant
* across all the vertices of a primitive without needing to duplicate
* the value for each vertex.
*
* @matrix3x3 represent a square 3 by 3 matrix specified in
* column-major order (each triple of consecutive numbers represents a
* column) which should have a corresponding declaration in GLSL code
* like:
*
* [|
* attribute mat3 name;
* |]
*
* If @transpose is %TRUE then all matrix components are rotated
* around the diagonal of the matrix such that the first column
* becomes the first row and the second column becomes the second row
* etc.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant matrix.
*/
CoglAttribute *
cogl_attribute_new_const_3x3fv (CoglContext *context,
const char *name,
const float *matrix3x3,
CoglBool transpose);
/**
* cogl_attribute_new_const_4x4fv:
* @context: A #CoglContext
* @name: The name of the attribute (used to reference it from GLSL)
* @matrix4x4: A pointer to a 4 by 4 matrix
* @transpose: Whether the matrix should be transposed on upload or
* not
*
* Creates a new matrix attribute whose value remains constant
* across all the vertices of a primitive without needing to duplicate
* the value for each vertex.
*
* @matrix4x4 represent a square 4 by 4 matrix specified in
* column-major order (each 4-tuple of consecutive numbers represents a
* column) which should have a corresponding declaration in GLSL code
* like:
*
* [|
* attribute mat4 name;
* |]
*
* If @transpose is %TRUE then all matrix components are rotated
* around the diagonal of the matrix such that the first column
* becomes the first row and the second column becomes the second row
* etc.
*
* Returns: A newly allocated #CoglAttribute representing the given
* constant matrix.
*/
CoglAttribute *
cogl_attribute_new_const_4x4fv (CoglContext *context,
const char *name,
const float *matrix4x4,
CoglBool transpose);
/**
* cogl_attribute_set_normalized:
* @attribute: A #CoglAttribute

277
cogl/driver/gl/cogl-attribute-gl.c
View File

@ -152,29 +152,187 @@ foreach_changed_bit_and_save (CoglContext *context,
#ifdef COGL_PIPELINE_PROGEND_GLSL
static void
setup_generic_attribute (CoglContext *context,
CoglPipeline *pipeline,
CoglAttribute *attribute,
uint8_t *base)
setup_generic_buffered_attribute (CoglContext *context,
CoglPipeline *pipeline,
CoglAttribute *attribute,
uint8_t *base)
{
int name_index = attribute->name_state->name_index;
int attrib_location =
_cogl_pipeline_progend_glsl_get_attrib_location (pipeline, name_index);
if (attrib_location != -1)
if (attrib_location == -1)
return;
GE( context, glVertexAttribPointer (attrib_location,
attribute->d.buffered.n_components,
attribute->d.buffered.type,
attribute->normalized,
attribute->d.buffered.stride,
base + attribute->d.buffered.offset) );
_cogl_bitmask_set (&context->enable_custom_attributes_tmp,
attrib_location, TRUE);
}
static void
setup_generic_const_attribute (CoglContext *context,
CoglPipeline *pipeline,
CoglAttribute *attribute)
{
int name_index = attribute->name_state->name_index;
int attrib_location =
_cogl_pipeline_progend_glsl_get_attrib_location (pipeline, name_index);
int columns;
int i;
if (attrib_location == -1)
return;
if (attribute->d.constant.boxed.type == COGL_BOXED_MATRIX)
columns = attribute->d.constant.boxed.size;
else
columns = 1;
/* Note: it's ok to access a COGL_BOXED_FLOAT as a matrix with only
* one column... */
switch (attribute->d.constant.boxed.size)
{
GE( context, glVertexAttribPointer (attrib_location,
attribute->n_components,
attribute->type,
attribute->normalized,
attribute->stride,
base + attribute->offset) );
_cogl_bitmask_set (&context->enable_custom_attributes_tmp,
attrib_location, TRUE);
case 1:
GE( context, glVertexAttrib1fv (attrib_location,
attribute->d.constant.boxed.v.matrix));
break;
case 2:
for (i = 0; i < columns; i++)
GE( context, glVertexAttrib2fv (attrib_location + i,
attribute->d.constant.boxed.v.matrix));
break;
case 3:
for (i = 0; i < columns; i++)
GE( context, glVertexAttrib3fv (attrib_location + i,
attribute->d.constant.boxed.v.matrix));
break;
case 4:
for (i = 0; i < columns; i++)
GE( context, glVertexAttrib4fv (attrib_location + i,
attribute->d.constant.boxed.v.matrix));
break;
default:
g_warn_if_reached ();
}
}
#endif /* COGL_PIPELINE_PROGEND_GLSL */
static void
setup_legacy_buffered_attribute (CoglContext *ctx,
CoglPipeline *pipeline,
CoglAttribute *attribute,
uint8_t *base)
{
switch (attribute->name_state->name_id)
{
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY, TRUE);
GE (ctx, glColorPointer (attribute->d.buffered.n_components,
attribute->d.buffered.type,
attribute->d.buffered.stride,
base + attribute->d.buffered.offset));
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY, TRUE);
GE (ctx, glNormalPointer (attribute->d.buffered.type,
attribute->d.buffered.stride,
base + attribute->d.buffered.offset));
break;
case COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY:
{
int layer_number = attribute->name_state->layer_number;
CoglPipelineLayer *layer =
_cogl_pipeline_get_layer (pipeline, layer_number);
int unit = _cogl_pipeline_layer_get_unit_index (layer);
_cogl_bitmask_set (&ctx->enable_texcoord_attributes_tmp, unit, TRUE);
GE (ctx, glClientActiveTexture (GL_TEXTURE0 + unit));
GE (ctx, glTexCoordPointer (attribute->d.buffered.n_components,
attribute->d.buffered.type,
attribute->d.buffered.stride,
base + attribute->d.buffered.offset));
break;
}
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY, TRUE);
GE (ctx, glVertexPointer (attribute->d.buffered.n_components,
attribute->d.buffered.type,
attribute->d.buffered.stride,
base + attribute->d.buffered.offset));
break;
case COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (ctx->driver != COGL_DRIVER_GLES1)
setup_generic_buffered_attribute (ctx, pipeline, attribute, base);
#endif
break;
default:
g_warn_if_reached ();
}
}
static void
setup_legacy_const_attribute (CoglContext *ctx,
CoglPipeline *pipeline,
CoglAttribute *attribute)
{
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (attribute->name_state->name_id == COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY)
{
if (ctx->driver != COGL_DRIVER_GLES1)
setup_generic_const_attribute (ctx, pipeline, attribute);
}
else
#endif
{
float vector[4] = { 0, 0, 0, 1 };
float *boxed = attribute->d.constant.boxed.v.float_value;
int n_components = attribute->d.constant.boxed.size;
int i;
for (i = 0; i < n_components; i++)
vector[i] = boxed[i];
switch (attribute->name_state->name_id)
{
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
GE (ctx, glColor4f (vector[0], vector[1], vector[2], vector[3]));
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
GE (ctx, glNormal3f (vector[0], vector[1], vector[2]));
break;
case COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY:
{
int layer_number = attribute->name_state->layer_number;
CoglPipelineLayer *layer =
_cogl_pipeline_get_layer (pipeline, layer_number);
int unit = _cogl_pipeline_layer_get_unit_index (layer);
GE (ctx, glClientActiveTexture (GL_TEXTURE0 + unit));
GE (ctx, glMultiTexCoord4f (vector[0], vector[1], vector[2], vector[3]));
break;
}
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
GE (ctx, glVertex4f (vector[0], vector[1], vector[2], vector[3]));
break;
default:
g_warn_if_reached ();
}
}
}
static void
apply_attribute_enable_updates (CoglContext *context,
CoglPipeline *pipeline)
@ -305,88 +463,27 @@ _cogl_gl_flush_attributes_state (CoglFramebuffer *framebuffer,
CoglBuffer *buffer;
uint8_t *base;
attribute_buffer = cogl_attribute_get_buffer (attribute);
buffer = COGL_BUFFER (attribute_buffer);
base = _cogl_buffer_gl_bind (buffer, COGL_BUFFER_BIND_TARGET_ATTRIBUTE_BUFFER);
switch (attribute->name_state->name_id)
if (attribute->is_buffered)
{
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_attribute (ctx, pipeline, attribute, base);
else
#endif
{
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY, TRUE);
GE (ctx, glColorPointer (attribute->n_components,
attribute->type,
attribute->stride,
base + attribute->offset));
}
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_attribute (ctx, pipeline, attribute, base);
else
#endif
{
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY, TRUE);
GE (ctx, glNormalPointer (attribute->type,
attribute->stride,
base + attribute->offset));
}
break;
case COGL_ATTRIBUTE_NAME_ID_TEXTURE_COORD_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_attribute (ctx, pipeline, attribute, base);
else
#endif
{
int layer_number = attribute->name_state->layer_number;
CoglPipelineLayer *layer =
_cogl_pipeline_get_layer (pipeline, layer_number);
int unit = _cogl_pipeline_layer_get_unit_index (layer);
attribute_buffer = cogl_attribute_get_buffer (attribute);
buffer = COGL_BUFFER (attribute_buffer);
base = _cogl_buffer_gl_bind (buffer,
COGL_BUFFER_BIND_TARGET_ATTRIBUTE_BUFFER);
_cogl_bitmask_set (&ctx->enable_texcoord_attributes_tmp,
unit, TRUE);
GE (ctx, glClientActiveTexture (GL_TEXTURE0 + unit));
GE (ctx, glTexCoordPointer (attribute->n_components,
attribute->type,
attribute->stride,
base + attribute->offset));
}
break;
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_attribute (ctx, pipeline, attribute, base);
setup_generic_buffered_attribute (ctx, pipeline, attribute, base);
else
#endif
{
_cogl_bitmask_set (&ctx->enable_builtin_attributes_tmp,
COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY, TRUE);
GE (ctx, glVertexPointer (attribute->n_components,
attribute->type,
attribute->stride,
base + attribute->offset));
}
break;
case COGL_ATTRIBUTE_NAME_ID_CUSTOM_ARRAY:
#ifdef COGL_PIPELINE_PROGEND_GLSL
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_attribute (ctx, pipeline, attribute, base);
#endif
break;
default:
g_warning ("Unrecognised attribute type 0x%08x", attribute->type);
setup_legacy_buffered_attribute (ctx, pipeline, attribute, base);
_cogl_buffer_gl_unbind (buffer);
}
else
{
if (pipeline->progend == COGL_PIPELINE_PROGEND_GLSL)
setup_generic_const_attribute (ctx, pipeline, attribute);
else
setup_legacy_const_attribute (ctx, pipeline, attribute);
}
_cogl_buffer_gl_unbind (buffer);
}
apply_attribute_enable_updates (ctx, pipeline);

8
cogl/gl-prototypes/cogl-fixed-functions.h
View File

@ -72,6 +72,8 @@ COGL_EXT_FUNCTION (void, glTexEnvfv,
(GLenum target, GLenum pname, const GLfloat *params))
COGL_EXT_FUNCTION (void, glColor4ub,
(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha))
COGL_EXT_FUNCTION (void, glColor4f,
(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha))
COGL_EXT_FUNCTION (void, glColorPointer,
(GLint size,
GLenum type,
@ -85,8 +87,12 @@ COGL_EXT_FUNCTION (void, glLoadIdentity,
(void))
COGL_EXT_FUNCTION (void, glMatrixMode,
(GLenum mode))
COGL_EXT_FUNCTION (void, glNormal3f,
(GLfloat x, GLfloat y, GLfloat z))
COGL_EXT_FUNCTION (void, glNormalPointer,
(GLenum type, GLsizei stride, const GLvoid *pointer))
COGL_EXT_FUNCTION (void, glMultiTexCoord4f,
(GLfloat s, GLfloat t, GLfloat r, GLfloat q))
COGL_EXT_FUNCTION (void, glTexCoordPointer,
(GLint size,
GLenum type,
@ -96,6 +102,8 @@ COGL_EXT_FUNCTION (void, glTexEnvi,
(GLenum target,
GLenum pname,
GLint param))
COGL_EXT_FUNCTION (void, glVertex4f,
(GLfloat x, GLfloat y, GLfloat z, GLfloat w))
COGL_EXT_FUNCTION (void, glVertexPointer,
(GLint size,
GLenum type,