CWin32Platform::CWin32Platform(HWND hWnd)
: IPlatformRequest ()
, m_hWnd (hWnd)
, m_version_string (NULL)
, m_bNoDefaultFont (false)
{
// WinSock 初期化
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 0), &wsaData);
m_hDC = GetDC(m_hWnd);
// OSとバージョンをあらわす文字列を作っておく
m_version_string = create_version_string();
}
static void
compute_version_es2(struct gl_context *ctx)
{
/* OpenGL ES 2.0 is derived from OpenGL 2.0 */
const GLboolean ver_2_0 = (ctx->Extensions.ARB_texture_cube_map &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
ctx->Extensions.ARB_shader_objects &&
ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader &&
ctx->Extensions.ARB_texture_non_power_of_two &&
ctx->Extensions.EXT_blend_equation_separate);
/* FINISHME: This list isn't quite right. */
const GLboolean ver_3_0 = (ctx->Extensions.ARB_half_float_vertex &&
ctx->Extensions.ARB_internalformat_query &&
ctx->Extensions.ARB_map_buffer_range &&
ctx->Extensions.ARB_shader_texture_lod &&
ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_texture_rg &&
ctx->Extensions.ARB_texture_compression_rgtc &&
ctx->Extensions.EXT_draw_buffers2 &&
/* ctx->Extensions.ARB_framebuffer_object && */
ctx->Extensions.EXT_framebuffer_sRGB &&
ctx->Extensions.EXT_packed_float &&
ctx->Extensions.EXT_texture_array &&
ctx->Extensions.EXT_texture_shared_exponent &&
ctx->Extensions.EXT_transform_feedback &&
ctx->Extensions.NV_conditional_render &&
ctx->Extensions.ARB_draw_instanced &&
ctx->Extensions.ARB_uniform_buffer_object &&
ctx->Extensions.EXT_texture_snorm &&
ctx->Extensions.NV_primitive_restart &&
ctx->Extensions.OES_depth_texture_cube_map);
if (ver_3_0) {
ctx->Version = 30;
} else if (ver_2_0) {
ctx->Version = 20;
} else {
_mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
}
create_version_string(ctx, "OpenGL ES ");
}
static void
compute_version_es1(struct gl_context *ctx)
{
/* OpenGL ES 1.0 is derived from OpenGL 1.3 */
const GLboolean ver_1_0 = (ctx->Extensions.ARB_texture_env_combine &&
ctx->Extensions.ARB_texture_env_dot3);
/* OpenGL ES 1.1 is derived from OpenGL 1.5 */
const GLboolean ver_1_1 = (ver_1_0 &&
ctx->Extensions.EXT_point_parameters);
if (ver_1_1) {
ctx->Version = 11;
} else if (ver_1_0) {
ctx->Version = 10;
} else {
_mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support.");
}
create_version_string(ctx, "OpenGL ES-CM ");
}
/**
* Override the context's version and/or API type if the
* environment variable MESA_GL_VERSION_OVERRIDE is set.
*
* Example uses of MESA_GL_VERSION_OVERRIDE:
*
* 2.1: select a compatibility (non-Core) profile with GL version 2.1
* 3.0: select a compatibility (non-Core) profile with GL version 3.0
* 3.0FC: select a Core+Forward Compatible profile with GL version 3.0
* 3.1: select a Core profile with GL version 3.1
* 3.1FC: select a Core+Forward Compatible profile with GL version 3.1
*/
void
_mesa_override_gl_version(struct gl_context *ctx)
{
int version;
GLboolean fwd_context;
get_gl_override(&version, &fwd_context);
if (version > 0) {
ctx->Version = version;
if (version >= 30 && fwd_context) {
ctx->API = API_OPENGL_CORE;
ctx->Const.ContextFlags |= GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
} else if (version >= 31) {
ctx->API = API_OPENGL_CORE;
} else {
ctx->API = API_OPENGL_COMPAT;
}
create_version_string(ctx, "");
}
}
static void
compute_version_es2(struct gl_context *ctx)
{
/* OpenGL ES 2.0 is derived from OpenGL 2.0 */
const GLboolean ver_2_0 = (ctx->Extensions.ARB_texture_cube_map &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
ctx->Extensions.ARB_shader_objects &&
ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader &&
ctx->Extensions.ARB_texture_non_power_of_two &&
ctx->Extensions.EXT_blend_equation_separate);
if (ver_2_0) {
ctx->Version = 20;
} else {
_mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
}
create_version_string(ctx, "OpenGL ES ");
}
/**
* Examine enabled GL extensions to determine GL version.
*/
static void
compute_version(struct gl_context *ctx)
{
GLuint major, minor;
const GLboolean ver_1_3 = (ctx->Extensions.ARB_texture_border_clamp &&
ctx->Extensions.ARB_texture_cube_map &&
ctx->Extensions.ARB_texture_env_combine &&
ctx->Extensions.ARB_texture_env_dot3);
const GLboolean ver_1_4 = (ver_1_3 &&
ctx->Extensions.ARB_depth_texture &&
ctx->Extensions.ARB_shadow &&
ctx->Extensions.ARB_texture_env_crossbar &&
ctx->Extensions.EXT_blend_color &&
ctx->Extensions.EXT_blend_func_separate &&
ctx->Extensions.EXT_blend_minmax &&
ctx->Extensions.EXT_point_parameters);
const GLboolean ver_1_5 = (ver_1_4 &&
ctx->Extensions.ARB_occlusion_query);
const GLboolean ver_2_0 = (ver_1_5 &&
ctx->Extensions.ARB_point_sprite &&
ctx->Extensions.ARB_vertex_shader &&
ctx->Extensions.ARB_fragment_shader &&
ctx->Extensions.ARB_texture_non_power_of_two &&
ctx->Extensions.EXT_blend_equation_separate &&
/* Technically, 2.0 requires the functionality
* of the EXT version. Enable 2.0 if either
* extension is available, and assume that a
* driver that only exposes the ATI extension
* will fallback to software when necessary.
*/
(ctx->Extensions.EXT_stencil_two_side
|| ctx->Extensions.ATI_separate_stencil));
const GLboolean ver_2_1 = (ver_2_0 &&
ctx->Extensions.EXT_pixel_buffer_object &&
ctx->Extensions.EXT_texture_sRGB);
const GLboolean ver_3_0 = (ver_2_1 &&
ctx->Const.GLSLVersion >= 130 &&
(ctx->Const.MaxSamples >= 4 || ctx->Const.FakeSWMSAA) &&
(ctx->API == API_OPENGL_CORE ||
ctx->Extensions.ARB_color_buffer_float) &&
ctx->Extensions.ARB_depth_buffer_float &&
ctx->Extensions.ARB_half_float_vertex &&
ctx->Extensions.ARB_map_buffer_range &&
ctx->Extensions.ARB_shader_texture_lod &&
ctx->Extensions.ARB_texture_float &&
ctx->Extensions.ARB_texture_rg &&
ctx->Extensions.ARB_texture_compression_rgtc &&
ctx->Extensions.EXT_draw_buffers2 &&
ctx->Extensions.ARB_framebuffer_object &&
ctx->Extensions.EXT_framebuffer_sRGB &&
ctx->Extensions.EXT_packed_float &&
ctx->Extensions.EXT_texture_array &&
ctx->Extensions.EXT_texture_shared_exponent &&
ctx->Extensions.EXT_transform_feedback &&
ctx->Extensions.NV_conditional_render);
const GLboolean ver_3_1 = (ver_3_0 &&
ctx->Const.GLSLVersion >= 140 &&
ctx->Extensions.ARB_draw_instanced &&
ctx->Extensions.ARB_texture_buffer_object &&
ctx->Extensions.ARB_uniform_buffer_object &&
ctx->Extensions.EXT_texture_snorm &&
ctx->Extensions.NV_primitive_restart &&
ctx->Extensions.NV_texture_rectangle &&
ctx->Const.Program[MESA_SHADER_VERTEX].MaxTextureImageUnits >= 16);
const GLboolean ver_3_2 = (ver_3_1 &&
ctx->Const.GLSLVersion >= 150 &&
ctx->Extensions.ARB_depth_clamp &&
ctx->Extensions.ARB_draw_elements_base_vertex &&
ctx->Extensions.ARB_fragment_coord_conventions &&
ctx->Extensions.EXT_provoking_vertex &&
ctx->Extensions.ARB_seamless_cube_map &&
ctx->Extensions.ARB_sync &&
ctx->Extensions.ARB_texture_multisample &&
ctx->Extensions.EXT_vertex_array_bgra);
const GLboolean ver_3_3 = (ver_3_2 &&
ctx->Const.GLSLVersion >= 330 &&
ctx->Extensions.ARB_blend_func_extended &&
ctx->Extensions.ARB_explicit_attrib_location &&
ctx->Extensions.ARB_instanced_arrays &&
ctx->Extensions.ARB_occlusion_query2 &&
ctx->Extensions.ARB_shader_bit_encoding &&
ctx->Extensions.ARB_texture_rgb10_a2ui &&
ctx->Extensions.ARB_timer_query &&
ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&
ctx->Extensions.EXT_texture_swizzle);
/* ARB_sampler_objects is always enabled in mesa */
if (ver_3_3) {
major = 3;
minor = 3;
}
else if (ver_3_2) {
major = 3;
minor = 2;
}
else if (ver_3_1) {
major = 3;
minor = 1;
}
else if (ver_3_0) {
major = 3;
minor = 0;
}
else if (ver_2_1) {
major = 2;
minor = 1;
}
else if (ver_2_0) {
major = 2;
minor = 0;
}
else if (ver_1_5) {
major = 1;
minor = 5;
}
else if (ver_1_4) {
major = 1;
minor = 4;
}
else if (ver_1_3) {
major = 1;
minor = 3;
}
else {
major = 1;
minor = 2;
}
ctx->Version = major * 10 + minor;
create_version_string(ctx, "");
}
