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library: working 3D proof of concept

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Adam
2024-01-19 22:44:23 +00:00
parent ec1865a69f
commit 6f9a8f2f59
3 changed files with 84 additions and 18 deletions
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3
src/library/gl.c
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@@ -194,6 +194,9 @@ void _bolt_glcontext_init(struct GLContext* context, void* egl_context, void* eg
memset(context, 0, sizeof(*context));
context->id = (uintptr_t)egl_context;
context->texture_units = calloc(MAX_TEXTURE_UNITS, sizeof(unsigned int));
context->game_view_framebuffer = -1;
context->game_view_tex = -1;
context->target_3d_tex = -1;
if (shared) {
context->programs = shared->programs;
context->buffers = shared->buffers;

14
src/library/gl.h
View File

@@ -16,12 +16,16 @@
#define GL_FLOAT 5126
#define GL_HALF_FLOAT 5131
#define GL_TRIANGLES 4
#define GL_TRIANGLE_STRIP 5
#define GL_MAP_READ_BIT 1
#define GL_MAP_WRITE_BIT 2
#define GL_MAP_FLUSH_EXPLICIT_BIT 16
#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT 0x8C4F
#define GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT 0x8C4D
#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
#define GL_FRAMEBUFFER 36160
#define GL_READ_FRAMEBUFFER 36008
#define GL_DRAW_FRAMEBUFFER 36009
#define GL_ARRAY_BUFFER 34962
#define GL_ELEMENT_ARRAY_BUFFER 34963
#define GL_UNIFORM_BUFFER 35345
@@ -31,6 +35,8 @@
#define GL_UNIFORM_OFFSET 35387
#define GL_UNIFORM_BLOCK_BINDING 35391
#define GL_TEXTURE0 33984
#define GL_COLOR_ATTACHMENT0 36064
#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 36049
struct GLArrayBuffer {
void* data;
@@ -61,6 +67,7 @@ struct GLProgram {
int loc_uAtlasMeta;
int loc_uModelMatrix;
int loc_uVertexScale;
int loc_sSceneHDRTex;
int block_index_ViewTransforms;
int offset_uCameraPosition;
int offset_uViewProjMatrix;
@@ -98,6 +105,13 @@ struct GLContext {
unsigned int active_texture;
unsigned int current_draw_framebuffer;
unsigned int current_read_framebuffer;
unsigned int game_view_framebuffer;
unsigned int game_view_tex;
unsigned int target_3d_tex;
int game_view_x;
int game_view_y;
int game_view_w;
int game_view_h;
uint8_t is_attached;
uint8_t deferred_destroy;
uint8_t is_shared_owner;

85
src/library/so/main.c
View File

@@ -92,6 +92,8 @@ void (*real_glGetUniformIndices)(uint32_t, uint32_t, const char**, unsigned int*
void (*real_glGetActiveUniformsiv)(unsigned int, uint32_t, const unsigned int*, uint32_t, int*) = NULL;
void (*real_glGetActiveUniformBlockiv)(unsigned int, unsigned int, uint32_t, int*) = NULL;
void (*real_glGetIntegeri_v)(uint32_t, unsigned int, int*) = NULL;
void (*real_glBlitFramebuffer)(int, int, int, int, int, int, int, int, uint32_t, uint32_t) = NULL;
void (*real_glGetFramebufferAttachmentParameteriv)(uint32_t, uint32_t, uint32_t, int*) = NULL;
/* opengl functions that are usually loaded dynamically from libGL.so */
void (*real_glDrawArrays)(uint32_t, int, unsigned int) = NULL;
@@ -318,6 +320,12 @@ unsigned int _bolt_glCreateProgram() {
program->loc_uTextureAtlas = -1;
program->loc_uTextureAtlasSettings = -1;
program->loc_uAtlasMeta = -1;
program->loc_uModelMatrix = -1;
program->loc_uVertexScale = -1;
program->loc_sSceneHDRTex = -1;
program->block_index_ViewTransforms = -1;
program->offset_uCameraPosition = -1;
program->offset_uViewProjMatrix = -1;
program->is_2d = 0;
program->is_3d = 0;
LOG("glCreateProgram end\n");
@@ -364,6 +372,7 @@ void _bolt_glLinkProgram(unsigned int program) {
LOG("glLinkProgram\n");
real_glLinkProgram(program);
struct GLContext* c = _bolt_context();
struct GLProgram* p = c->programs[program];
const int uDiffuseMap = real_glGetUniformLocation(program, "uDiffuseMap");
const int uProjectionMatrix = real_glGetUniformLocation(program, "uProjectionMatrix");
const int uTextureAtlas = real_glGetUniformLocation(program, "uTextureAtlas");
@@ -371,17 +380,18 @@ void _bolt_glLinkProgram(unsigned int program) {
const int uAtlasMeta = real_glGetUniformLocation(program, "uAtlasMeta");
const int loc_uModelMatrix = real_glGetUniformLocation(program, "uModelMatrix");
const int loc_uVertexScale = real_glGetUniformLocation(program, "uVertexScale");
p->loc_sSceneHDRTex = real_glGetUniformLocation(program, "sSceneHDRTex");
const char* ubo_var_names[] = {"uCameraPosition", "uViewProjMatrix"};
const char* view_var_names[] = {"uCameraPosition", "uViewProjMatrix"};
const int block_index_ViewTransforms = real_glGetUniformBlockIndex(program, "ViewTransforms");
unsigned int ubo_indices[2];
int ubo_offsets[2];
int view_offsets[2];
int viewport_offset;
if (block_index_ViewTransforms != -1) {
real_glGetUniformIndices(program, 2, ubo_var_names, ubo_indices);
real_glGetActiveUniformsiv(program, 2, ubo_indices, GL_UNIFORM_OFFSET, ubo_offsets);
real_glGetUniformIndices(program, 2, view_var_names, ubo_indices);
real_glGetActiveUniformsiv(program, 2, ubo_indices, GL_UNIFORM_OFFSET, view_offsets);
}
struct GLProgram* p = c->programs[program];
if (p && p->loc_aVertexPosition2D != -1 && p->loc_aVertexColour != -1 && p->loc_aTextureUV != -1 && p->loc_aTextureUVAtlasMin != -1 && p->loc_aTextureUVAtlasExtents != -1 && uDiffuseMap != -1 && uProjectionMatrix != -1) {
p->loc_uDiffuseMap = uDiffuseMap;
p->loc_uProjectionMatrix = uProjectionMatrix;
@@ -394,8 +404,8 @@ void _bolt_glLinkProgram(unsigned int program) {
p->loc_uModelMatrix = loc_uModelMatrix;
p->loc_uVertexScale = loc_uVertexScale;
p->block_index_ViewTransforms = block_index_ViewTransforms;
p->offset_uCameraPosition = ubo_offsets[0];
p->offset_uViewProjMatrix = ubo_offsets[1];
p->offset_uCameraPosition = view_offsets[0];
p->offset_uViewProjMatrix = view_offsets[1];
p->is_3d = 1;
}
LOG("glLinkProgram end\n");
@@ -494,13 +504,13 @@ void _bolt_glBindFramebuffer(uint32_t target, unsigned int framebuffer) {
real_glBindFramebuffer(target, framebuffer);
struct GLContext* c = _bolt_context();
switch (target) {
case 36008:
case GL_READ_FRAMEBUFFER:
c->current_read_framebuffer = framebuffer;
break;
case 36009:
case GL_DRAW_FRAMEBUFFER:
c->current_draw_framebuffer = framebuffer;
break;
case 36160:
case GL_FRAMEBUFFER:
c->current_read_framebuffer = framebuffer;
c->current_draw_framebuffer = framebuffer;
break;
@@ -799,6 +809,9 @@ void glDrawElements(uint32_t mode, unsigned int count, uint32_t type, const void
}
}
if (type == GL_UNSIGNED_SHORT && mode == GL_TRIANGLES && count == 2370 && current_program->is_3d) {
int draw_tex;
real_glGetFramebufferAttachmentParameteriv(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &draw_tex);
if (draw_tex != c->target_3d_tex) return;
const struct GLAttrBinding* xyxz = &attributes[current_program->loc_aMaterialSettingsSlotXY_TilePositionXZ];
const struct GLAttrBinding* vertex_xyz_bone = &attributes[current_program->loc_aVertexPosition_BoneLabel];
if (xyxz->enabled && vertex_xyz_bone->enabled) {
@@ -830,14 +843,16 @@ void glDrawElements(uint32_t mode, unsigned int count, uint32_t type, const void
}
} else {
if (portal_found) {
int ubo_binding, ubo_index;
int ubo_binding, ubo_view_index, ubo_viewport_index;
float model_matrix[16];
float screen_points[8][4];
real_glGetActiveUniformBlockiv(c->bound_program_id, current_program->block_index_ViewTransforms, GL_UNIFORM_BLOCK_BINDING, &ubo_binding);
real_glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, ubo_binding, &ubo_index);
real_glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, ubo_binding, &ubo_view_index);
real_glGetUniformfv(c->bound_program_id, current_program->loc_uModelMatrix, model_matrix);
const float* view_proj_matrix = (float*)(c->buffers[ubo_index]->data + current_program->offset_uViewProjMatrix);
float screen_x_min, screen_x_max, screen_y_min, screen_y_max, screen_z_min, screen_z_max;
const float* view_proj_matrix = (float*)(c->buffers[ubo_view_index]->data + current_program->offset_uViewProjMatrix);
real_glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, ubo_binding, &ubo_viewport_index);
const struct GLArrayBuffer* ubo_viewport = c->buffers[ubo_viewport_index];
float screen_x_min, screen_x_max, screen_y_min, screen_y_max;
for (uint8_t i = 0; i < 8; i += 1) {
float world_points[4];
_bolt_mul_vec4_mat4(
@@ -856,11 +871,13 @@ void glDrawElements(uint32_t mode, unsigned int count, uint32_t type, const void
if (i == 0 || screen_points[i][0] > screen_x_max) screen_x_max = screen_points[i][0];
if (i == 0 || screen_points[i][1] < screen_y_min) screen_y_min = screen_points[i][1];
if (i == 0 || screen_points[i][1] > screen_y_max) screen_y_max = screen_points[i][1];
if (i == 0 || screen_points[i][2] < screen_z_min) screen_z_min = screen_points[i][2];
if (i == 0 || screen_points[i][2] > screen_z_max) screen_z_max = screen_points[i][2];
}
printf("boss portal on screen at %f, %f, %f to %f, %f, %f\n", screen_x_min, screen_y_min, screen_z_min, screen_x_max, screen_y_max, screen_z_max);
printf("portal on screen at %i,%i to %i,%i\n",
(int)floorf(((1.0 + screen_x_min) * c->game_view_w / 2.0) + c->game_view_x),
(int)floorf(((1.0 + screen_y_min) * c->game_view_h / 2.0) + c->game_view_y),
(int)ceilf(((1.0 + screen_x_max) * c->game_view_w / 2.0) + c->game_view_x),
(int)ceilf(((1.0 + screen_y_max) * c->game_view_h / 2.0) + c->game_view_y)
);
portal_found = 0;
}
@@ -934,6 +951,29 @@ void _bolt_glGetIntegeri_v(uint32_t target, unsigned int index, int* data) {
real_glGetIntegeri_v(target, index, data);
}
void _bolt_glBlitFramebuffer(int srcX0, int srcY0, int srcX1, int srcY1, int dstX0, int dstY0, int dstX1, int dstY1, uint32_t mask, uint32_t filter) {
LOG("glBlitFramebuffer\n");
real_glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
struct GLContext* c = _bolt_context();
if (c->current_draw_framebuffer == 0) {
c->game_view_framebuffer = c->current_read_framebuffer;
c->game_view_x = dstX0;
c->game_view_y = dstY0;
c->game_view_w = dstX1 - dstX0;
c->game_view_h = dstY1 - dstY0;
}
if (c->current_draw_framebuffer == c->game_view_framebuffer) {
int target_3d_tex;
real_glGetFramebufferAttachmentParameteriv(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &target_3d_tex);
c->target_3d_tex = (unsigned int)target_3d_tex;
}
LOG("glBlitFramebuffer end\n");
}
void _bolt_glGetFramebufferAttachmentParameteriv(uint32_t target, uint32_t attachment, uint32_t pname, int* params) {
real_glGetFramebufferAttachmentParameteriv(target, attachment, pname, params);
}
void _bolt_glDeleteVertexArrays(uint32_t n, const unsigned int* arrays) {
LOG("glDeleteVertexArrays\n");
real_glDeleteVertexArrays(n, arrays);
@@ -947,6 +987,13 @@ void _bolt_glDeleteVertexArrays(uint32_t n, const unsigned int* arrays) {
void glDrawArrays(uint32_t mode, int first, unsigned int count) {
LOG("glDrawArrays\n");
real_glDrawArrays(mode, first, count);
struct GLContext* c = _bolt_context();
const struct GLProgram* program = c->programs[c->bound_program_id];
if (c->current_draw_framebuffer == c->game_view_framebuffer && program->loc_sSceneHDRTex != -1 && mode == GL_TRIANGLE_STRIP && count == 4) {
int game_view_tex;
real_glGetUniformiv(c->bound_program_id, program->loc_sSceneHDRTex, &game_view_tex);
c->game_view_tex = c->texture_units[game_view_tex];
}
LOG("glDrawArrays end\n");
}
@@ -1076,6 +1123,8 @@ void* eglGetProcAddress(const char* name) {
PROC_ADDRESS_MAP(glGetActiveUniformsiv)
PROC_ADDRESS_MAP(glGetActiveUniformBlockiv)
PROC_ADDRESS_MAP(glGetIntegeri_v)
PROC_ADDRESS_MAP(glBlitFramebuffer)
PROC_ADDRESS_MAP(glGetFramebufferAttachmentParameteriv)
#undef PROC_ADDRESS_MAP
return real_eglGetProcAddress(name);
}