e77a784714
The other colors of a material; such as the ambient and diffuse color are only relevent when we can enable lighting. This adds a basic unlit color property. Later cogl_set_source_color can be integrated to either modify the color of the current source material, or maintain a special singlton CoglMaterial that is modified by calls to cogl_set_source_color and implicitly made current.
715 lines
21 KiB
C
715 lines
21 KiB
C
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cogl.h"
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#include "cogl-internal.h"
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#include "cogl-context.h"
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#include "cogl-handle.h"
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#include "cogl-material-private.h"
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#include <glib.h>
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#include <string.h>
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static void _cogl_material_free (CoglMaterial *tex);
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static void _cogl_material_layer_free (CoglMaterialLayer *layer);
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COGL_HANDLE_DEFINE (Material, material, material_handles);
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COGL_HANDLE_DEFINE (MaterialLayer,
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material_layer,
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material_layer_handles);
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CoglHandle
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cogl_material_new (void)
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{
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/* Create new - blank - material */
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CoglMaterial *material = g_new0 (CoglMaterial, 1);
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GLfloat *unlit = material->unlit;
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GLfloat *ambient = material->ambient;
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GLfloat *diffuse = material->diffuse;
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GLfloat *specular = material->specular;
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GLfloat *emission = material->emission;
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material->ref_count = 1;
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COGL_HANDLE_DEBUG_NEW (material, material);
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/* Use the same defaults as the GL spec... */
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unlit[0] = 1.0; unlit[1] = 1.0; unlit[2] = 1.0; unlit[3] = 1.0;
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/* Use the same defaults as the GL spec... */
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ambient[0] = 0.2; ambient[1] = 0.2; ambient[2] = 0.2; ambient[3] = 1.0;
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diffuse[0] = 0.8; diffuse[1] = 0.8; diffuse[2] = 0.8; diffuse[3] = 1.0;
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specular[0] = 0; specular[1] = 0; specular[2] = 0; specular[3] = 1.0;
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emission[0] = 0; emission[1] = 0; emission[2] = 0; emission[3] = 1.0;
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/* Use the same defaults as the GL spec... */
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material->alpha_func = COGL_MATERIAL_ALPHA_FUNC_ALWAYS;
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material->alpha_func_reference = 0.0;
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/* Not the same as the GL default, but seems saner... */
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material->blend_src_factor = COGL_MATERIAL_BLEND_FACTOR_SRC_ALPHA;
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material->blend_dst_factor = COGL_MATERIAL_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA;
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material->layers = NULL;
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return _cogl_material_handle_new (material);
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}
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static void
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_cogl_material_free (CoglMaterial *material)
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{
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/* Frees material resources but its handle is not
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released! Do that separately before this! */
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g_list_foreach (material->layers,
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(GFunc)cogl_material_layer_unref, NULL);
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g_free (material);
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}
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void
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cogl_material_set_color (CoglHandle handle,
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const CoglColor *unlit_color)
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{
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CoglMaterial *material;
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GLfloat unlit[4];
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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unlit[0] = cogl_color_get_red_float (unlit_color);
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unlit[1] = cogl_color_get_green_float (unlit_color);
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unlit[2] = cogl_color_get_blue_float (unlit_color);
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unlit[3] = cogl_color_get_alpha_float (unlit_color);
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if (memcmp (unlit, material->unlit, sizeof (unlit)) == 0)
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return;
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memcpy (material->unlit, unlit, sizeof (unlit));
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_ambient (CoglHandle handle,
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const CoglColor *ambient_color)
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{
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CoglMaterial *material;
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GLfloat *ambient;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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ambient = material->ambient;
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ambient[0] = cogl_color_get_red_float (ambient_color);
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ambient[1] = cogl_color_get_green_float (ambient_color);
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ambient[2] = cogl_color_get_blue_float (ambient_color);
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ambient[3] = cogl_color_get_alpha_float (ambient_color);
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_diffuse (CoglHandle handle,
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const CoglColor *diffuse_color)
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{
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CoglMaterial *material;
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GLfloat *diffuse;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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diffuse = material->diffuse;
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diffuse[0] = cogl_color_get_red_float (diffuse_color);
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diffuse[1] = cogl_color_get_green_float (diffuse_color);
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diffuse[2] = cogl_color_get_blue_float (diffuse_color);
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diffuse[3] = cogl_color_get_alpha_float (diffuse_color);
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_ambient_and_diffuse (CoglHandle handle,
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const CoglColor *color)
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{
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cogl_material_set_ambient (handle, color);
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cogl_material_set_diffuse (handle, color);
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}
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void
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cogl_material_set_specular (CoglHandle handle,
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const CoglColor *specular_color)
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{
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CoglMaterial *material;
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GLfloat *specular;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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specular = material->specular;
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specular[0] = cogl_color_get_red_float (specular_color);
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specular[1] = cogl_color_get_green_float (specular_color);
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specular[2] = cogl_color_get_blue_float (specular_color);
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specular[3] = cogl_color_get_alpha_float (specular_color);
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_shininess (CoglHandle handle,
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float shininess)
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{
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CoglMaterial *material;
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g_return_if_fail (cogl_is_material (handle));
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if (shininess < 0.0 || shininess > 1.0)
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g_warning ("Out of range shininess %f supplied for material\n",
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shininess);
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material = _cogl_material_pointer_from_handle (handle);
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material->shininess = (GLfloat)shininess * 128.0;
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_emission (CoglHandle handle,
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const CoglColor *emission_color)
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{
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CoglMaterial *material;
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GLfloat *emission;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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emission = material->emission;
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emission[0] = cogl_color_get_red_float (emission_color);
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emission[1] = cogl_color_get_green_float (emission_color);
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emission[2] = cogl_color_get_blue_float (emission_color);
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emission[3] = cogl_color_get_alpha_float (emission_color);
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_alpha_test_function (CoglHandle handle,
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CoglMaterialAlphaFunc alpha_func,
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float alpha_reference)
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{
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CoglMaterial *material;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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material->alpha_func = alpha_func;
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material->alpha_func_reference = (GLfloat)alpha_reference;
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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void
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cogl_material_set_blend_factors (CoglHandle handle,
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CoglMaterialBlendFactor src_factor,
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CoglMaterialBlendFactor dst_factor)
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{
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CoglMaterial *material;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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material->blend_src_factor = src_factor;
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material->blend_dst_factor = dst_factor;
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material->flags |= COGL_MATERIAL_FLAG_DIRTY;
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}
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/* Asserts that a layer corresponding to the given index exists. If no
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* match is found, then a new empty layer is added.
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*/
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static CoglMaterialLayer *
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_cogl_material_get_layer (CoglMaterial *material,
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gint index,
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gboolean create_if_not_found)
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{
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CoglMaterialLayer *layer;
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GList *tmp;
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CoglHandle layer_handle;
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for (tmp = material->layers; tmp != NULL; tmp = tmp->next)
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{
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layer =
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_cogl_material_layer_pointer_from_handle ((CoglHandle)tmp->data);
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if (layer->index == index)
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return layer;
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/* The layers are always sorted, so at this point we know this layer
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* doesn't exist */
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if (layer->index > index)
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break;
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}
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/* NB: if we now insert a new layer before tmp, that will maintain order.
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*/
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if (!create_if_not_found)
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return NULL;
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layer = g_new0 (CoglMaterialLayer, 1);
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layer->ref_count = 1;
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layer->index = index;
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layer->texture = COGL_INVALID_HANDLE;
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/* Choose the same default combine mode as OpenGL:
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* MODULATE(PREVIOUS[RGBA],TEXTURE[RGBA]) */
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layer->texture_combine_rgb_func = COGL_MATERIAL_LAYER_COMBINE_FUNC_MODULATE;
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layer->texture_combine_rgb_src[0] = COGL_MATERIAL_LAYER_COMBINE_SRC_PREVIOUS;
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layer->texture_combine_rgb_src[1] = COGL_MATERIAL_LAYER_COMBINE_SRC_TEXTURE;
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layer->texture_combine_rgb_op[0] = COGL_MATERIAL_LAYER_COMBINE_OP_SRC_COLOR;
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layer->texture_combine_rgb_op[1] = COGL_MATERIAL_LAYER_COMBINE_OP_SRC_COLOR;
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layer->texture_combine_alpha_func =
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COGL_MATERIAL_LAYER_COMBINE_FUNC_MODULATE;
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layer->texture_combine_alpha_src[0] =
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COGL_MATERIAL_LAYER_COMBINE_SRC_PREVIOUS;
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layer->texture_combine_alpha_src[1] =
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COGL_MATERIAL_LAYER_COMBINE_SRC_TEXTURE;
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layer->texture_combine_alpha_op[0] =
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COGL_MATERIAL_LAYER_COMBINE_OP_SRC_ALPHA;
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layer->texture_combine_alpha_op[1] =
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COGL_MATERIAL_LAYER_COMBINE_OP_SRC_ALPHA;
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layer_handle = _cogl_material_layer_handle_new (layer);
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/* Note: see comment after for() loop above */
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material->layers =
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g_list_insert_before (material->layers, tmp, layer_handle);
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return layer;
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}
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void
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cogl_material_set_layer (CoglHandle material_handle,
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gint layer_index,
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CoglHandle texture_handle)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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int n_layers;
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g_return_if_fail (cogl_is_material (material_handle));
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g_return_if_fail (cogl_is_texture (texture_handle));
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material = _cogl_material_pointer_from_handle (material_handle);
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layer = _cogl_material_get_layer (material_handle, layer_index, TRUE);
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/* XXX: If we expose manual control over ENABLE_BLEND, we'll add
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* a flag to know when it's user configured, so we don't trash it */
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if (cogl_texture_get_format (texture_handle) & COGL_A_BIT)
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material->flags |= COGL_MATERIAL_FLAG_ENABLE_BLEND;
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n_layers = g_list_length (material->layers);
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if (n_layers >= CGL_MAX_COMBINED_TEXTURE_IMAGE_UNITS)
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{
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if (!(material->flags & COGL_MATERIAL_FLAG_SHOWN_SAMPLER_WARNING))
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{
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g_warning ("Your hardware doesnot have enough texture samplers"
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"to handle this many texture layers");
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material->flags |= COGL_MATERIAL_FLAG_SHOWN_SAMPLER_WARNING;
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}
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/* Note: We always make a best effort attempt to display as many
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* layers as possible, so this isn't an _error_ */
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/* Note: in the future we may support enabling/disabling layers
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* too, so it may become valid to add more than
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* MAX_COMBINED_TEXTURE_IMAGE_UNITS layers. */
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}
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if (layer->texture)
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cogl_texture_unref (layer->texture);
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cogl_texture_ref (texture_handle);
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layer->texture = texture_handle;
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}
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void
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cogl_material_set_layer_combine_function (
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CoglHandle handle,
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gint layer_index,
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CoglMaterialLayerCombineChannels channels,
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CoglMaterialLayerCombineFunc func)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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gboolean set_alpha_func = FALSE;
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gboolean set_rgb_func = FALSE;
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g_return_if_fail (cogl_is_material (handle));
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material = _cogl_material_pointer_from_handle (handle);
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layer = _cogl_material_get_layer (material, layer_index, FALSE);
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if (!layer)
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return;
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if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGBA)
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set_alpha_func = set_rgb_func = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGB)
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set_rgb_func = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_ALPHA)
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set_alpha_func = TRUE;
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if (set_rgb_func)
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layer->texture_combine_rgb_func = func;
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if (set_alpha_func)
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layer->texture_combine_alpha_func = func;
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}
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void
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cogl_material_set_layer_combine_arg_src (
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CoglHandle handle,
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gint layer_index,
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gint argument,
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CoglMaterialLayerCombineChannels channels,
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CoglMaterialLayerCombineSrc src)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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gboolean set_arg_alpha_src = FALSE;
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gboolean set_arg_rgb_src = FALSE;
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g_return_if_fail (cogl_is_material (handle));
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g_return_if_fail (argument >=0 && argument <= 3);
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material = _cogl_material_pointer_from_handle (handle);
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layer = _cogl_material_get_layer (material, layer_index, FALSE);
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if (!layer)
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return;
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if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGBA)
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set_arg_alpha_src = set_arg_rgb_src = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGB)
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set_arg_rgb_src = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_ALPHA)
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set_arg_alpha_src = TRUE;
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if (set_arg_rgb_src)
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layer->texture_combine_rgb_src[argument] = src;
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if (set_arg_alpha_src)
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layer->texture_combine_alpha_src[argument] = src;
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}
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void
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cogl_material_set_layer_combine_arg_op (
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CoglHandle material_handle,
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gint layer_index,
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gint argument,
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CoglMaterialLayerCombineChannels channels,
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CoglMaterialLayerCombineOp op)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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gboolean set_arg_alpha_op = FALSE;
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gboolean set_arg_rgb_op = FALSE;
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g_return_if_fail (cogl_is_material (material_handle));
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g_return_if_fail (argument >=0 && argument <= 3);
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material = _cogl_material_pointer_from_handle (material_handle);
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layer = _cogl_material_get_layer (material, layer_index, FALSE);
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if (!layer)
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return;
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if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGBA)
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set_arg_alpha_op = set_arg_rgb_op = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_RGB)
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set_arg_rgb_op = TRUE;
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else if (channels == COGL_MATERIAL_LAYER_COMBINE_CHANNELS_ALPHA)
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set_arg_alpha_op = TRUE;
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if (set_arg_rgb_op)
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layer->texture_combine_rgb_op[argument] = op;
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if (set_arg_alpha_op)
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layer->texture_combine_alpha_op[argument] = op;
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}
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void
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cogl_material_set_layer_matrix (CoglHandle material_handle,
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gint layer_index,
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CoglMatrix *matrix)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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g_return_if_fail (cogl_is_material (material_handle));
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material = _cogl_material_pointer_from_handle (material_handle);
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layer = _cogl_material_get_layer (material, layer_index, FALSE);
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if (!layer)
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return;
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layer->matrix = *matrix;
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layer->flags |= COGL_MATERIAL_LAYER_FLAG_USER_MATRIX;
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}
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static void
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_cogl_material_layer_free (CoglMaterialLayer *layer)
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{
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cogl_texture_unref (layer->texture);
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g_free (layer);
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}
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void
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cogl_material_remove_layer (CoglHandle material_handle,
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gint layer_index)
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{
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CoglMaterial *material;
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CoglMaterialLayer *layer;
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GList *tmp;
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g_return_if_fail (cogl_is_material (material_handle));
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material = _cogl_material_pointer_from_handle (material_handle);
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material->flags &= ~COGL_MATERIAL_FLAG_ENABLE_BLEND;
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for (tmp = material->layers; tmp != NULL; tmp = tmp->next)
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{
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layer = tmp->data;
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if (layer->index == layer_index)
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{
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CoglHandle handle =
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_cogl_material_layer_handle_from_pointer (layer);
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cogl_material_layer_unref (handle);
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material->layers = g_list_remove (material->layers, layer);
|
|
continue;
|
|
}
|
|
|
|
/* XXX: If we expose manual control over ENABLE_BLEND, we'll add
|
|
* a flag to know when it's user configured, so we don't trash it */
|
|
if (cogl_texture_get_format (layer->texture) & COGL_A_BIT)
|
|
material->flags |= COGL_MATERIAL_FLAG_ENABLE_BLEND;
|
|
}
|
|
}
|
|
|
|
/* XXX: This API is hopfully just a stop-gap solution. Ideally cogl_enable
|
|
* will be replaced. */
|
|
gulong
|
|
cogl_material_get_cogl_enable_flags (CoglHandle material_handle)
|
|
{
|
|
CoglMaterial *material;
|
|
gulong enable_flags = 0;
|
|
|
|
_COGL_GET_CONTEXT (ctx, 0);
|
|
|
|
g_return_val_if_fail (cogl_is_material (material_handle), 0);
|
|
|
|
material = _cogl_material_pointer_from_handle (material_handle);
|
|
|
|
/* Enable blending if the geometry has an associated alpha color,
|
|
* or the material wants blending enabled. */
|
|
if (material->flags & COGL_MATERIAL_FLAG_ENABLE_BLEND
|
|
|| ctx->color_alpha < 255)
|
|
enable_flags |= COGL_ENABLE_BLEND;
|
|
|
|
return enable_flags;
|
|
}
|
|
|
|
/* It's a bit out of the ordinary to return a const GList *, but it's
|
|
* probably sensible to try and avoid list manipulation for every
|
|
* primitive emitted in a scene, every frame.
|
|
*
|
|
* Alternativly; we could either add a _foreach function, or maybe
|
|
* a function that gets a passed a buffer (that may be stack allocated)
|
|
* by the caller.
|
|
*/
|
|
const GList *
|
|
cogl_material_get_layers (CoglHandle material_handle)
|
|
{
|
|
CoglMaterial *material;
|
|
|
|
g_return_val_if_fail (cogl_is_material (material_handle), NULL);
|
|
|
|
material = _cogl_material_pointer_from_handle (material_handle);
|
|
|
|
return material->layers;
|
|
}
|
|
|
|
CoglMaterialLayerType
|
|
cogl_material_layer_get_type (CoglHandle layer_handle)
|
|
{
|
|
return COGL_MATERIAL_LAYER_TYPE_TEXTURE;
|
|
}
|
|
|
|
CoglHandle
|
|
cogl_material_layer_get_texture (CoglHandle layer_handle)
|
|
{
|
|
CoglMaterialLayer *layer;
|
|
|
|
g_return_val_if_fail (cogl_is_material_layer (layer_handle),
|
|
COGL_INVALID_HANDLE);
|
|
|
|
layer = _cogl_material_layer_pointer_from_handle (layer_handle);
|
|
return layer->texture;
|
|
}
|
|
|
|
static guint
|
|
get_n_args_for_combine_func (CoglMaterialLayerCombineFunc func)
|
|
{
|
|
switch (func)
|
|
{
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_REPLACE:
|
|
return 1;
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_MODULATE:
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_ADD:
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_ADD_SIGNED:
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_SUBTRACT:
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_DOT3_RGB:
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_DOT3_RGBA:
|
|
return 2;
|
|
case COGL_MATERIAL_LAYER_COMBINE_FUNC_INTERPOLATE:
|
|
return 3;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
cogl_material_layer_flush_gl_sampler_state (CoglHandle layer_handle)
|
|
{
|
|
CoglMaterialLayer *layer;
|
|
int n_rgb_func_args;
|
|
int n_alpha_func_args;
|
|
|
|
g_return_if_fail (cogl_is_material_layer (layer_handle));
|
|
|
|
layer = _cogl_material_layer_pointer_from_handle (layer_handle);
|
|
|
|
/* XXX: We really want some kind of cache/dirty flag mechanism
|
|
* somewhere here so we can avoid as much mucking about with
|
|
* the texture units per primitive as possible!
|
|
*
|
|
* E.g. some recent profiling of clutter-actor suggested that
|
|
* validating/updating the texture environment may currently
|
|
* be a significant bottleneck. Given that all the actors should
|
|
* have the same texture environment, that implies we could do a
|
|
* much better job of avoiding redundant glTexEnv calls.
|
|
*/
|
|
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE));
|
|
|
|
/* Set the combiner functions... */
|
|
GE (glTexEnvi (GL_TEXTURE_ENV,
|
|
GL_COMBINE_RGB,
|
|
layer->texture_combine_rgb_func));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV,
|
|
GL_COMBINE_ALPHA,
|
|
layer->texture_combine_alpha_func));
|
|
|
|
/*
|
|
* Setup the function arguments...
|
|
*/
|
|
|
|
/* For the RGB components... */
|
|
n_rgb_func_args =
|
|
get_n_args_for_combine_func (layer->texture_combine_rgb_func);
|
|
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC0_RGB,
|
|
layer->texture_combine_rgb_src[0]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND0_RGB,
|
|
layer->texture_combine_rgb_op[0]));
|
|
if (n_rgb_func_args > 1)
|
|
{
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC1_RGB,
|
|
layer->texture_combine_rgb_src[1]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND1_RGB,
|
|
layer->texture_combine_rgb_op[1]));
|
|
}
|
|
if (n_rgb_func_args > 2)
|
|
{
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC2_RGB,
|
|
layer->texture_combine_rgb_src[2]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND2_RGB,
|
|
layer->texture_combine_rgb_op[2]));
|
|
}
|
|
|
|
/* For the Alpha component */
|
|
n_alpha_func_args =
|
|
get_n_args_for_combine_func (layer->texture_combine_alpha_func);
|
|
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC0_ALPHA,
|
|
layer->texture_combine_alpha_src[0]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND0_ALPHA,
|
|
layer->texture_combine_alpha_op[0]));
|
|
if (n_alpha_func_args > 1)
|
|
{
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC1_ALPHA,
|
|
layer->texture_combine_alpha_src[1]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND1_ALPHA,
|
|
layer->texture_combine_alpha_op[1]));
|
|
}
|
|
if (n_alpha_func_args > 2)
|
|
{
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_SRC2_ALPHA,
|
|
layer->texture_combine_alpha_src[2]));
|
|
GE (glTexEnvi (GL_TEXTURE_ENV, GL_OPERAND2_ALPHA,
|
|
layer->texture_combine_alpha_op[2]));
|
|
}
|
|
|
|
if (layer->flags & COGL_MATERIAL_LAYER_FLAG_USER_MATRIX)
|
|
{
|
|
GE (glMatrixMode (GL_TEXTURE));
|
|
GE (glLoadMatrixf ((GLfloat *)&layer->matrix));
|
|
GE (glMatrixMode (GL_MODELVIEW));
|
|
}
|
|
}
|
|
|
|
/* TODO: Should go in cogl.c, but that implies duplication which is also
|
|
* not ideal. */
|
|
void
|
|
cogl_set_source (CoglHandle material_handle)
|
|
{
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
g_return_if_fail (cogl_is_material (material_handle));
|
|
|
|
if (ctx->source_material == material_handle)
|
|
return;
|
|
|
|
if (ctx->source_material)
|
|
cogl_material_unref (ctx->source_material);
|
|
|
|
cogl_material_ref (material_handle);
|
|
ctx->source_material = material_handle;
|
|
}
|
|
/* TODO: add cogl_set_front_source (), and cogl_set_back_source () */
|
|
|
|
void
|
|
cogl_flush_material_gl_state (void)
|
|
{
|
|
CoglMaterial *material;
|
|
_COGL_GET_CONTEXT (ctx, NO_RETVAL);
|
|
|
|
material = _cogl_material_pointer_from_handle (ctx->source_material);
|
|
|
|
if (ctx->source_material == ctx->current_material
|
|
&& !(material->flags & COGL_MATERIAL_FLAG_DIRTY))
|
|
return;
|
|
|
|
GE (glColor4fv (material->unlit));
|
|
|
|
/* FIXME - we only need to set these if lighting is enabled... */
|
|
GE (glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT, material->ambient));
|
|
GE (glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, material->diffuse));
|
|
GE (glMaterialfv (GL_FRONT_AND_BACK, GL_SPECULAR, material->specular));
|
|
GE (glMaterialfv (GL_FRONT_AND_BACK, GL_EMISSION, material->emission));
|
|
GE (glMaterialfv (GL_FRONT_AND_BACK, GL_SHININESS, &material->shininess));
|
|
|
|
/* NB: Currently the Cogl defines are compatible with the GL ones: */
|
|
GE (glAlphaFunc (material->alpha_func, material->alpha_func_reference));
|
|
|
|
GE (glBlendFunc (material->blend_src_factor, material->blend_dst_factor));
|
|
|
|
ctx->current_material = ctx->source_material;
|
|
}
|
|
|