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cogl-pipeline: Use enums for the layer combine values

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Once the GLES2 wrapper is removed then we won't have the GLenums
needed for setting up the layer combine state. This adds Cogl enums
instead which have the same values as the corresponding GLenums. The
enums are:

CoglPipelineCombineFunc
CoglPipelineCombineSource
 and
CoglPipelineCombineOp
This commit is contained in:
Neil Roberts 2010-12-06 21:29:56 +00:00
parent a05c701e6b
commit 2b32a9eb2a
4 changed files with 148 additions and 94 deletions
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41
cogl/cogl-pipeline-fragend-arbfp.c
View file

@ -455,7 +455,7 @@ setup_arg (CoglPipeline *pipeline,
switch (src)
{
case GL_TEXTURE:
case COGL_PIPELINE_COMBINE_SOURCE_TEXTURE:
arg->type = COGL_PIPELINE_FRAGEND_ARBFP_ARG_TYPE_TEXTURE;
arg->name = "texel%d";
arg->texture_unit = _cogl_pipeline_layer_get_unit_index (layer);
@ -463,7 +463,7 @@ setup_arg (CoglPipeline *pipeline,
cogl_texture_get_gl_texture (texture, NULL, &gl_target);
setup_texture_source (arbfp_program_state, arg->texture_unit, gl_target);
break;
case GL_CONSTANT:
case COGL_PIPELINE_COMBINE_SOURCE_CONSTANT:
{
int unit_index = _cogl_pipeline_layer_get_unit_index (layer);
UnitState *unit_state = &arbfp_program_state->unit_state[unit_index];
@ -476,11 +476,11 @@ setup_arg (CoglPipeline *pipeline,
arg->constant_id = unit_state->constant_id;
break;
}
case GL_PRIMARY_COLOR:
case COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR:
arg->type = COGL_PIPELINE_FRAGEND_ARBFP_ARG_TYPE_SIMPLE;
arg->name = "fragment.color.primary";
break;
case GL_PREVIOUS:
case COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS:
arg->type = COGL_PIPELINE_FRAGEND_ARBFP_ARG_TYPE_SIMPLE;
if (_cogl_pipeline_layer_get_unit_index (layer) == 0)
arg->name = "fragment.color.primary";
@ -500,9 +500,9 @@ setup_arg (CoglPipeline *pipeline,
switch (op)
{
case GL_SRC_COLOR:
case COGL_PIPELINE_COMBINE_OP_SRC_COLOR:
break;
case GL_ONE_MINUS_SRC_COLOR:
case COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR:
g_string_append_printf (arbfp_program_state->source,
"SUB tmp%d, one, ",
arg_index);
@ -512,13 +512,13 @@ setup_arg (CoglPipeline *pipeline,
arg->name = tmp_name[arg_index];
arg->swizzle = "";
break;
case GL_SRC_ALPHA:
case COGL_PIPELINE_COMBINE_OP_SRC_ALPHA:
/* avoid a swizzle if we know RGB are going to be masked
* in the end anyway */
if (mask != COGL_BLEND_STRING_CHANNEL_MASK_ALPHA)
arg->swizzle = ".a";
break;
case GL_ONE_MINUS_SRC_ALPHA:
case COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA:
g_string_append_printf (arbfp_program_state->source,
"SUB tmp%d, one, ",
arg_index);
@ -594,29 +594,29 @@ append_function (CoglPipeline *pipeline,
switch (function)
{
case GL_ADD:
case COGL_PIPELINE_COMBINE_FUNC_ADD:
g_string_append_printf (arbfp_program_state->source,
"ADD_SAT output%s, ",
mask_name);
break;
case GL_MODULATE:
case COGL_PIPELINE_COMBINE_FUNC_MODULATE:
/* Note: no need to saturate since we can assume operands
* have values in the range [0,1] */
g_string_append_printf (arbfp_program_state->source, "MUL output%s, ",
mask_name);
break;
case GL_REPLACE:
case COGL_PIPELINE_COMBINE_FUNC_REPLACE:
/* Note: no need to saturate since we can assume operand
* has a value in the range [0,1] */
g_string_append_printf (arbfp_program_state->source, "MOV output%s, ",
mask_name);
break;
case GL_SUBTRACT:
case COGL_PIPELINE_COMBINE_FUNC_SUBTRACT:
g_string_append_printf (arbfp_program_state->source,
"SUB_SAT output%s, ",
mask_name);
break;
case GL_ADD_SIGNED:
case COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED:
g_string_append_printf (arbfp_program_state->source, "ADD tmp3%s, ",
mask_name);
append_arg (arbfp_program_state->source, &args[0]);
@ -628,7 +628,7 @@ append_function (CoglPipeline *pipeline,
mask_name);
n_args = 0;
break;
case GL_DOT3_RGB:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB:
/* These functions are the same except that GL_DOT3_RGB never
* updates the alpha channel.
*
@ -636,7 +636,7 @@ append_function (CoglPipeline *pipeline,
* an RGBA mask and we end up ignoring any separate alpha channel
* function.
*/
case GL_DOT3_RGBA:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA:
{
const char *tmp4 = "tmp4";
@ -671,7 +671,7 @@ append_function (CoglPipeline *pipeline,
n_args = 0;
}
break;
case GL_INTERPOLATE:
case COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE:
/* Note: no need to saturate since we can assume operands
* have values in the range [0,1] */
@ -708,9 +708,9 @@ static void
append_masked_combine (CoglPipeline *arbfp_authority,
CoglPipelineLayer *layer,
CoglBlendStringChannelMask mask,
GLint function,
GLint *src,
GLint *op)
CoglPipelineCombineFunc function,
CoglPipelineCombineSource *src,
CoglPipelineCombineOp *op)
{
int i;
int n_args;
@ -788,7 +788,8 @@ _cogl_pipeline_fragend_arbfp_add_layer (CoglPipeline *pipeline,
big_state->texture_combine_rgb_src,
big_state->texture_combine_rgb_op);
}
else if (big_state->texture_combine_rgb_func == GL_DOT3_RGBA)
else if (big_state->texture_combine_rgb_func ==
COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA)
{
/* GL_DOT3_RGBA Is a bit weird as a GL_COMBINE_RGB function
* since if you use it, it overrides your ALPHA function...

48
cogl/cogl-pipeline-fragend-glsl.c
View file

@ -463,8 +463,8 @@ static void
add_arg (GlslShaderState *glsl_shader_state,
CoglPipeline *pipeline,
CoglPipelineLayer *layer,
GLint src,
GLenum operand,
CoglPipelineCombineSource src,
CoglPipelineCombineOp operand,
const char *swizzle)
{
GString *shader_source = glsl_shader_state->source;
@ -472,14 +472,16 @@ add_arg (GlslShaderState *glsl_shader_state,
g_string_append_c (shader_source, '(');
if (operand == GL_ONE_MINUS_SRC_COLOR || operand == GL_ONE_MINUS_SRC_ALPHA)
if (operand == COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR ||
operand == COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA)
g_string_append_printf (shader_source,
"vec4(1.0, 1.0, 1.0, 1.0).%s - ",
swizzle);
/* If the operand is reading from the alpha then replace the swizzle
with the same number of copies of the alpha */
if (operand == GL_SRC_ALPHA || operand == GL_ONE_MINUS_SRC_ALPHA)
if (operand == COGL_PIPELINE_COMBINE_OP_SRC_ALPHA ||
operand == COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA)
{
alpha_swizzle[strlen (swizzle)] = '\0';
swizzle = alpha_swizzle;
@ -487,37 +489,38 @@ add_arg (GlslShaderState *glsl_shader_state,
switch (src)
{
case GL_TEXTURE:
case COGL_PIPELINE_COMBINE_SOURCE_TEXTURE:
add_texture_lookup (glsl_shader_state,
pipeline,
layer,
swizzle);
break;
case GL_CONSTANT:
case COGL_PIPELINE_COMBINE_SOURCE_CONSTANT:
add_constant_lookup (glsl_shader_state,
pipeline,
layer,
swizzle);
break;
case GL_PREVIOUS:
case COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS:
if (_cogl_pipeline_layer_get_unit_index (layer) > 0)
{
g_string_append_printf (shader_source, "cogl_color_out.%s", swizzle);
break;
}
/* flow through */
case GL_PRIMARY_COLOR:
case COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR:
g_string_append_printf (shader_source, "cogl_color_in.%s", swizzle);
break;
default:
if (src >= GL_TEXTURE0 && src < GL_TEXTURE0 + 32)
if (src >= COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0 &&
src < COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0 + 32)
{
FindPipelineLayerData data;
data.unit_index = src - GL_TEXTURE0;
data.unit_index = src - COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0;
data.layer = layer;
_cogl_pipeline_foreach_layer_internal (pipeline,
@ -539,9 +542,9 @@ static void
append_masked_combine (CoglPipeline *pipeline,
CoglPipelineLayer *layer,
const char *swizzle,
GLint function,
GLint *src,
GLint *op)
CoglPipelineCombineFunc function,
CoglPipelineCombineSource *src,
CoglPipelineCombineOp *op)
{
GlslShaderState *glsl_shader_state = get_glsl_shader_state (pipeline);
GString *shader_source = glsl_shader_state->source;
@ -551,12 +554,12 @@ append_masked_combine (CoglPipeline *pipeline,
switch (function)
{
case GL_REPLACE:
case COGL_PIPELINE_COMBINE_FUNC_REPLACE:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
break;
case GL_MODULATE:
case COGL_PIPELINE_COMBINE_FUNC_MODULATE:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
g_string_append (shader_source, " * ");
@ -564,7 +567,7 @@ append_masked_combine (CoglPipeline *pipeline,
src[1], op[1], swizzle);
break;
case GL_ADD:
case COGL_PIPELINE_COMBINE_FUNC_ADD:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
g_string_append (shader_source, " + ");
@ -572,7 +575,7 @@ append_masked_combine (CoglPipeline *pipeline,
src[1], op[1], swizzle);
break;
case GL_ADD_SIGNED:
case COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
g_string_append (shader_source, " + ");
@ -583,7 +586,7 @@ append_masked_combine (CoglPipeline *pipeline,
swizzle);
break;
case GL_SUBTRACT:
case COGL_PIPELINE_COMBINE_FUNC_SUBTRACT:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
g_string_append (shader_source, " - ");
@ -591,7 +594,7 @@ append_masked_combine (CoglPipeline *pipeline,
src[1], op[1], swizzle);
break;
case GL_INTERPOLATE:
case COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE:
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], swizzle);
g_string_append (shader_source, " * ");
@ -608,8 +611,8 @@ append_masked_combine (CoglPipeline *pipeline,
g_string_append_c (shader_source, ')');
break;
case GL_DOT3_RGB:
case GL_DOT3_RGBA:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA:
g_string_append (shader_source, "vec4(4.0 * ((");
add_arg (glsl_shader_state, pipeline, layer,
src[0], op[0], "r");
@ -653,7 +656,8 @@ _cogl_pipeline_fragend_glsl_add_layer (CoglPipeline *pipeline,
/* GL_DOT3_RGBA Is a bit weird as a GL_COMBINE_RGB function
* since if you use it, it overrides your ALPHA function...
*/
big_state->texture_combine_rgb_func == GL_DOT3_RGBA)
big_state->texture_combine_rgb_func ==
COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA)
append_masked_combine (pipeline,
layer,
"rgba",

46
cogl/cogl-pipeline-private.h
View file

@ -181,17 +181,49 @@ typedef enum
} CoglPipelineLayerState;
typedef enum
{
/* These are the same values as GL */
COGL_PIPELINE_COMBINE_FUNC_ADD = 0x0104,
COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED = 0x8574,
COGL_PIPELINE_COMBINE_FUNC_SUBTRACT = 0x84E7,
COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE = 0x8575,
COGL_PIPELINE_COMBINE_FUNC_REPLACE = 0x1E01,
COGL_PIPELINE_COMBINE_FUNC_MODULATE = 0x2100,
COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB = 0x86AE,
COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA = 0x86AF
} CoglPipelineCombineFunc;
typedef enum
{
/* These are the same values as GL */
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE = 0x1702,
COGL_PIPELINE_COMBINE_SOURCE_CONSTANT = 0x8576,
COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR = 0x8577,
COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS = 0x8578,
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0 = 0x84C0
} CoglPipelineCombineSource;
typedef enum
{
/* These are the same values as GL */
COGL_PIPELINE_COMBINE_OP_SRC_COLOR = 0x0300,
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR = 0x0301,
COGL_PIPELINE_COMBINE_OP_SRC_ALPHA = 0x0302,
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA = 0x0303
} CoglPipelineCombineOp;
typedef struct
{
/* The texture combine state determines how the color of individual
* texture fragments are calculated. */
GLint texture_combine_rgb_func;
GLint texture_combine_rgb_src[3];
GLint texture_combine_rgb_op[3];
CoglPipelineCombineFunc texture_combine_rgb_func;
CoglPipelineCombineSource texture_combine_rgb_src[3];
CoglPipelineCombineOp texture_combine_rgb_op[3];
GLint texture_combine_alpha_func;
GLint texture_combine_alpha_src[3];
GLint texture_combine_alpha_op[3];
CoglPipelineCombineFunc texture_combine_alpha_func;
CoglPipelineCombineSource texture_combine_alpha_src[3];
CoglPipelineCombineOp texture_combine_alpha_op[3];
float texture_combine_constant[4];
@ -864,7 +896,7 @@ void
_cogl_use_vertex_program (GLuint gl_program, CoglPipelineProgramType type);
unsigned int
_cogl_get_n_args_for_combine_func (GLint func);
_cogl_get_n_args_for_combine_func (CoglPipelineCombineFunc func);
/*
* _cogl_pipeline_weak_copy:

107
cogl/cogl-pipeline.c
View file

@ -777,11 +777,16 @@ layer_has_alpha_cb (CoglPipelineLayer *layer, void *data)
* assume it may result in an alpha value < 1
*
* FIXME: we could do better than this. */
if (big_state->texture_combine_alpha_func != GL_MODULATE ||
big_state->texture_combine_alpha_src[0] != GL_PREVIOUS ||
big_state->texture_combine_alpha_op[0] != GL_SRC_ALPHA ||
big_state->texture_combine_alpha_src[1] != GL_TEXTURE ||
big_state->texture_combine_alpha_op[1] != GL_SRC_ALPHA)
if (big_state->texture_combine_alpha_func !=
COGL_PIPELINE_COMBINE_FUNC_MODULATE ||
big_state->texture_combine_alpha_src[0] !=
COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS ||
big_state->texture_combine_alpha_op[0] !=
COGL_PIPELINE_COMBINE_OP_SRC_ALPHA ||
big_state->texture_combine_alpha_src[1] !=
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE ||
big_state->texture_combine_alpha_op[1] !=
COGL_PIPELINE_COMBINE_OP_SRC_ALPHA)
{
*has_alpha = TRUE;
/* return FALSE to stop iterating layers... */
@ -1614,20 +1619,20 @@ _cogl_pipeline_progend_layer_change_notify (CoglPipeline *owner,
}
unsigned int
_cogl_get_n_args_for_combine_func (GLint func)
_cogl_get_n_args_for_combine_func (CoglPipelineCombineFunc func)
{
switch (func)
{
case GL_REPLACE:
case COGL_PIPELINE_COMBINE_FUNC_REPLACE:
return 1;
case GL_MODULATE:
case GL_ADD:
case GL_ADD_SIGNED:
case GL_SUBTRACT:
case GL_DOT3_RGB:
case GL_DOT3_RGBA:
case COGL_PIPELINE_COMBINE_FUNC_MODULATE:
case COGL_PIPELINE_COMBINE_FUNC_ADD:
case COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED:
case COGL_PIPELINE_COMBINE_FUNC_SUBTRACT:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB:
case COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA:
return 2;
case GL_INTERPOLATE:
case COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE:
return 3;
}
return 0;
@ -4788,16 +4793,26 @@ _cogl_pipeline_init_default_layers (void)
/* Choose the same default combine mode as OpenGL:
* RGBA = MODULATE(PREVIOUS[RGBA],TEXTURE[RGBA]) */
big_state->texture_combine_rgb_func = GL_MODULATE;
big_state->texture_combine_rgb_src[0] = GL_PREVIOUS;
big_state->texture_combine_rgb_src[1] = GL_TEXTURE;
big_state->texture_combine_rgb_op[0] = GL_SRC_COLOR;
big_state->texture_combine_rgb_op[1] = GL_SRC_COLOR;
big_state->texture_combine_alpha_func = GL_MODULATE;
big_state->texture_combine_alpha_src[0] = GL_PREVIOUS;
big_state->texture_combine_alpha_src[1] = GL_TEXTURE;
big_state->texture_combine_alpha_op[0] = GL_SRC_ALPHA;
big_state->texture_combine_alpha_op[1] = GL_SRC_ALPHA;
big_state->texture_combine_rgb_func =
COGL_PIPELINE_COMBINE_FUNC_MODULATE;
big_state->texture_combine_rgb_src[0] =
COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS;
big_state->texture_combine_rgb_src[1] =
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
big_state->texture_combine_rgb_op[0] =
COGL_PIPELINE_COMBINE_OP_SRC_COLOR;
big_state->texture_combine_rgb_op[1] =
COGL_PIPELINE_COMBINE_OP_SRC_COLOR;
big_state->texture_combine_alpha_func =
COGL_PIPELINE_COMBINE_FUNC_MODULATE;
big_state->texture_combine_alpha_src[0] =
COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS;
big_state->texture_combine_alpha_src[1] =
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
big_state->texture_combine_alpha_op[0] =
COGL_PIPELINE_COMBINE_OP_SRC_ALPHA;
big_state->texture_combine_alpha_op[1] =
COGL_PIPELINE_COMBINE_OP_SRC_ALPHA;
big_state->point_sprite_coords = FALSE;
@ -4839,37 +4854,37 @@ _cogl_pipeline_init_default_layers (void)
static void
setup_texture_combine_state (CoglBlendStringStatement *statement,
GLint *texture_combine_func,
GLint *texture_combine_src,
GLint *texture_combine_op)
CoglPipelineCombineFunc *texture_combine_func,
CoglPipelineCombineSource *texture_combine_src,
CoglPipelineCombineOp *texture_combine_op)
{
int i;
switch (statement->function->type)
{
case COGL_BLEND_STRING_FUNCTION_REPLACE:
*texture_combine_func = GL_REPLACE;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_REPLACE;
break;
case COGL_BLEND_STRING_FUNCTION_MODULATE:
*texture_combine_func = GL_MODULATE;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_MODULATE;
break;
case COGL_BLEND_STRING_FUNCTION_ADD:
*texture_combine_func = GL_ADD;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_ADD;
break;
case COGL_BLEND_STRING_FUNCTION_ADD_SIGNED:
*texture_combine_func = GL_ADD_SIGNED;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_ADD_SIGNED;
break;
case COGL_BLEND_STRING_FUNCTION_INTERPOLATE:
*texture_combine_func = GL_INTERPOLATE;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_INTERPOLATE;
break;
case COGL_BLEND_STRING_FUNCTION_SUBTRACT:
*texture_combine_func = GL_SUBTRACT;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_SUBTRACT;
break;
case COGL_BLEND_STRING_FUNCTION_DOT3_RGB:
*texture_combine_func = GL_DOT3_RGB;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_DOT3_RGB;
break;
case COGL_BLEND_STRING_FUNCTION_DOT3_RGBA:
*texture_combine_func = GL_DOT3_RGBA;
*texture_combine_func = COGL_PIPELINE_COMBINE_FUNC_DOT3_RGBA;
break;
}
@ -4880,39 +4895,41 @@ setup_texture_combine_state (CoglBlendStringStatement *statement,
switch (arg->source.info->type)
{
case COGL_BLEND_STRING_COLOR_SOURCE_CONSTANT:
texture_combine_src[i] = GL_CONSTANT;
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_CONSTANT;
break;
case COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE:
texture_combine_src[i] = GL_TEXTURE;
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
break;
case COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE_N:
texture_combine_src[i] =
GL_TEXTURE0 + arg->source.texture;
COGL_PIPELINE_COMBINE_SOURCE_TEXTURE0 + arg->source.texture;
break;
case COGL_BLEND_STRING_COLOR_SOURCE_PRIMARY:
texture_combine_src[i] = GL_PRIMARY_COLOR;
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_PRIMARY_COLOR;
break;
case COGL_BLEND_STRING_COLOR_SOURCE_PREVIOUS:
texture_combine_src[i] = GL_PREVIOUS;
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_PREVIOUS;
break;
default:
g_warning ("Unexpected texture combine source");
texture_combine_src[i] = GL_TEXTURE;
texture_combine_src[i] = COGL_PIPELINE_COMBINE_SOURCE_TEXTURE;
}
if (arg->source.mask == COGL_BLEND_STRING_CHANNEL_MASK_RGB)
{
if (statement->args[i].source.one_minus)
texture_combine_op[i] = GL_ONE_MINUS_SRC_COLOR;
texture_combine_op[i] =
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_COLOR;
else
texture_combine_op[i] = GL_SRC_COLOR;
texture_combine_op[i] = COGL_PIPELINE_COMBINE_OP_SRC_COLOR;
}
else
{
if (statement->args[i].source.one_minus)
texture_combine_op[i] = GL_ONE_MINUS_SRC_ALPHA;
texture_combine_op[i] =
COGL_PIPELINE_COMBINE_OP_ONE_MINUS_SRC_ALPHA;
else
texture_combine_op[i] = GL_SRC_ALPHA;
texture_combine_op[i] = COGL_PIPELINE_COMBINE_OP_SRC_ALPHA;
}
}
}